Ar feed ramp blending. 308 AR using Aero Precision receivers and a Faxon barrel.

Ar feed ramp blending To blend, DO NOT ALTER THE FEED RAMPS! I cannot say this enough. 7 x 42 Caliber (aka 50 Beowulf), 375 SOCOM Barrels, Uppers, & Parts, 450 Bushmaster Barrels, Uppers & Parts, 458 SOCOM Barrels, Uppers, & Parts. No modification to your AR-15 is required to use our MA Loader! Anyways I have a friend who wanted to turn his AR pistol . It uses a single feed ramp on a rifle pattern receiver. 5" Pistol length 300AAC Blackout 1/7 Nitride with PSA Only have 200 rounds through this, with Armscor USA . AR-15 Lower Build. 350 magazine and polished the ramps but still having the same issues. 62x39 feed ramp example: You also will want to radius the ejector, and trouble-shoot the mags. The m4 type feed ramp is a shallower 52 degrees that extends down into the bottom of the upper receiver. Up until recently, I hadn't had many issues with it. College graduation gift to myself and first full AR build. As others said check GB alignment, if its GTG polish feed ramps, punch out your gas hole to . 62x39 AR feed ramp question The Art of the Rifle: Semi-automatics : The Firing Line Forums > The Hide > The Art of the Rifle: Semi-automatics: 7. 223 into a . Using magpul magazines. No wonder it couldn't feed properly. 62x39 build and have everything in order. My feed ramp was a very old style, very blocky with hard 90* corners. My question is for anyone who owns a PSA ARV with a barrel that DOES NOT have an improved cone: does the ARV’s built-in feed ramp overcome All components are brand new. Warning . Then wait because chances are your gonna break a firing pin or crack a bolt at some point. I sized a Dremel stone to . What helped out the most on the 450 was to adjust the feed lips on the mags. One other explanation is the vid above a guy having feeding problems when using I doubt it will cause any issues with the bolt locking in place as the same bolt is used in uppers without the M4 ramps but it will more than likely cause issues when the bolt comes forward to pick up a new round off that side of the magazine. I've blended my uppers and opened several ejection ports with a Dremel and Pillar file on the port door and just the Dremel on the feed ramp blend followed by a polishing point. At the moment I'm leaning toward cutting the ramps slightly over the diameter of the straight wall case at 45*, 22. It will eat whatever at that point . By applying Trimble's advanced positioning solutions, productivity increases and safety improvements are being realized. The feed ramps seems to line up to each other pretty well, but like I said there is a ledge, it’s just not a protruding one, it’s an intruding (probe “falls” to barrel extension ramp) Reply reply RSTH24 • Paint a round with a sharpie and run it through and maybe see where the ink is accumulating. POTD: Ruger A3 is the Rifle receiver and M4 is m4. Engineered with precision and crafted for performance, this barrel extension is designed to elevate your shooting experience to new heights. I finally got the chance to take my AR out today and fire its first shots. All the fixed carry handle uppers I've got are regular /non M4 feed ramps, so it's been easy for me once i figured out what in the world folks were talking about. I didn't source from there as years ago I was considering a similar mod and referred to several sources as I didn't want to booger up a colt upper I intended to use blanks through. Deep Dive: Canadian Federal Government Bans Another 300+ Firearms. Let's dive right into Polishing Feed Ramps! Join Now; My History; TFB Review: X2 Dev Group AR-X LightFighter . Starting life as a raw 9mm 1/10 twist blank, we machine them in our shop for maximum concentricity, accuracy and include the special hand polished feed cone we have developed to ensure smooth feeding. 5* each side of center. When talking to these manufacturers, they say the upper receivers with M4 feed ramps blend perfectly into the 30 cal extensions and nothing more is needed. DP-12 vs KSG. They come in 2 main flavors, Rifle and M4/extended feed ramps. M16A2 and A4 rifles don't have M4 ramps, run 20" Govt profile The feed ramps appear to be small and wait till you see the pics below. I guess it’s a common issue with ar9 because of the lack of a feed ramp so I picked up a Taccom after some googling and hope it does the trick. natedoggraymond May 10, 2024, 4:41pm 1. If i had to do it all over again I'd do the first half with a dremel then coarse & fine file, just wasn't sure how much to take off. A lot of guys might say spring or magazine, but I'm telling you if that barrel has the original Colt feed ramp design, that's Has anyone installed a Taccom feed ramp into their AR9? I took my fm9 out shooting for the first time this weekend and had a few last round jams with the JHP. If I use a standard 5. This is not a lemon issue this is Feed ramps issues I picked up an older colt m16a4 upper the other week, I'm having feeding issues mainly with wolf and occasionally hornady. My MCXes and x95 have physically (much more) refined ramps, do not eat up the projectiles or hang up( mis feed ) Posted by u/Bitter-Ride-1283 - 3 votes and 15 comments All my other builds have feed ramps in both the receiver and barrel I just bought an upper with no feed ramps. This subreddit is dedicated to news and discussion of AR-10's and other 308 AR Platform guns and their variations. I My CMMG MK 4 RCE rifle won't properly feed. When I run the 19 round 19x mags, the pistol works flawlessly. However, when I use 24 or 33 round Glock mags I get multiple failure-to-feeds where the bcg strips the round into the face of the barrel. In general, all you need to understand is that the M4 feed ramps include the barrel extension and upper receiver. Grinders are not precision tools Posted: 2/15/2012 5:47:48 AM EST blend the ramp and then follow with a cratex point in the 350 Legend Barrel from Faxon. I ended up getting a ballistic advantage enhanced EPC 9 barrel. neex November 29, 2021, 6:52pm 12. A quick google image search for “M4 feed ramps” will show you what we mean. Browning X-Bolt vs Tikka T3x. The C7 upper receiver features an A1 style carry handle with optic mount compatibility as well as M4 These are the same 9mm barrels we use in our 9mm conversions. Feeding issues completely gone on the . 90% of the time all you need is a light touch to create a feed ramp. Lots of 1980's-ish feed cones "look good" but fail miserably if feeding is ever so slightly out of alignment, or large cavity hollow points (HST) are involved. The purpose of M4 feed ramps is to give a little more ramp to catch rounds that are nosediving due to very high cyclic rate/violent feeding in an M4. texas2avideo. Posted: The Luth-AR A1/C7 Assembled AR-15 Upper Receiver is forged from 7075-T6 aluminum is perfect for building a 601 retro style rifle. The loader allows fixed-magazine rifl I'd run it first before blending in ramps. 4 oz buffer and different combinations. Also tried to use same set up with Endomag PMAG inserts, carbine spring, and 5. This space is for pictures of "retro" Stoner rifles and completed or No feed ramps + M4 extension is good to go. I had to adjust them up a little. A problem also made worse by magazines with marginal followers and springs. Our barrel extension features wide feed ramps that optimize the feeding of ammunition into the chamber, promoting smooth and The wear on my Criterion barreled PSA Gen II upper, is at the outside, bottom edge of the feed ramps. Like the Bushmaster 7. M4/AR has the feed ramps steeper, but they do not overhang the receiver ramps (there aren’t any) and no problem. Specifications. California Prop 65 warning. I'll be getting a trigger pin kit, enhanced firing pin and a couple new Duramag mags. one big trough. ARCHIVED; Posted: 9/17/2012 6:56:05 PM EST I am starting a 7. Ford Shelby Daytona - My son wanted to go to the Simeone Auto Museum for his birthday. Www. My Interference issues were with the feed ramps hitting the bolt, not the upper receiver. 1. Barrel feed ramp polishing in many cases can reduce the amount of metal shavings introduced into the receiver since rough edges and burrs will be removed in the process. You can "cut" a tongue using a dremel to fix this problem. Firing 115 FED brass. The only one I found is LaRue's upper, but it won't work with the hand guard I'm . Aero Precision M5 upper with a Ballistic Advantage Barrel. I haven't read any good descriptions about what part they polish or mods they do to the feed ramps. Start with the obvious different magazines etc. 308). All are DPMS compatible. 8 oz buffer, 308 spring, stern defense conversion with Glock mag. troubleshooting, question. Confirm Action I picked up an 11. You can always blend the ramps using a 3/16" chainsaw sharpening stone in a dremel tool. 2. Looking at the feed ramps on the barrel vs the upper they don't match, then do a final blend with a hard Scotch-Brite wheel. To remove the current dust cover on your AR-15, Even with the single feed ramp, the actual feed ramp needs to be blended with the upper receiver where they meet (on the inside of the upper). Mount barrel then lightly blend the upper ramp cuts to the bottom of the barrel ramps, and that Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Close. Each Mean Arms MA Feed Ramp is designed to fit all mil-spec AR-15 upper receivers and is guaranteed to provide a smoother, faster loading experience when used with the company’s MA-Loader. They suggested a mag issue and polish the feed ramps, I purchased a CMMG . A guy recently decided to blend like he was making a cake and removed the center locking lug in the middle of the feed ramps. Mismatching rifle extension to M4 receiver is bad. However, I don't have the BCG yet, so I can't actually test it to see. "Clocked" or misaligned barrel extension feed ramps that don't line up with the M4 feed ramps in the upper receiver "Overhang" where the feed ramps in the barrel extension protrude into the upper receiver, causing a lip or shelf where the bullet tip can get caught on The only reason they might seem standard, is because most people are buying carbines these days, and most carbine builders have gone to M4 feed ramps even though they are not necessary. Sadly A no-frills upper with BoreBuddy reliability. I have a Gibbz upper in my junk drawer because the upper -- for some reason -- wouldn't allow a perfectly good bolt (as checked by Criterion) to headspace correctly on a Criterion barrel, with the bolt installed in the Hey dudes. CMMG. If the round doesn't slide up the ramp straight it could cause the bolt to hang up. Too easy to disassemble and remedy but if not broken kinda senseless to fix. however, the feed ramp on it is not your M4 or AR-308 type. there's some AR-15 7. 223 Wylde. SKU: UPR-1-X Categories: 12. If the barrel extension Hey all! So I talked my dad into building ARs with me by telling him we don’t do enough ‘father / son bonding’ projects 😃 We got our parts and had our build / range (my house) day yesterday. When I charge it, the bullet gets jammed directly straight into the feed ramp. AR Talk New Member Introductions Malfunctions and Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. That doesn't appear to be the case. See 3,000+ New Gun Deals HERE. It is a gap, not an overlap (i. Doubled by a poorly ramped barrel it sounds like. NOTE: This DOES NOT fit an AR-10 upper and DOES NOT work with our MA Loader for AR-10 (. This upper has M4 feed ramps. The one thing that I keep hearing about is people that polish the feed ramps on 7. 350 barrel on the gun, it ran fine in . 62x39mm barrel. 7. I consider that standard assembly Ar-V feed ramp question . What causes feed ramp issues in an AR-15? Feed ramp issues in an AR-15 can be caused by rough or uneven feed ramps, improper alignment, or debris obstructing A place to discuss variants of the AR series that are chambered for pistol cartridges, including 9mm, 45ACP, and 22LR. . 5 sr15 upper and the feed ramp transition is not smooth like my other KACs and LMTs. However, it’s rare now to find an upper receiveror a ready-to-go barrel that doesn’t have the M4 cuts. Build list in comments. I had some feed issues and thats when I started polishing the undersides of feed lips and ramps. 308 AR using Aero Precision receivers and a Faxon barrel. It creates a larger opening that makes it easier and faster when using the MA Loader. Members Online • deseret_dill . 62x39 AR m4 feed ramps. The 22 ARC typically employs M4-style feed ramps, integrated into both the barrel extension and upper receiver, to help minimize jams and improve overall reliability. 20” barrels sometimes do, sometimes don’t. Are there after-market feed ramps that don't (as in, DO NOT) mar the tip of a round being fed into the chamber? Like, marring the tip of a hollow-point bullet. . I've just about finished assembling my new 9mm AR pistol, but I have a couple questions. That's all I could find. It will lock back on subsonic loads on CFE BLK or A1680, or Factory Sub. e. Aero M4E1 Threaded Stripped Upper. There are three initial criteria needed to make the M4 feed ramps necessary; a carbine-length gas system, high cyclic rate full auto fire (700-950), and worn magazine springs. and unfortunately 9mm ar and similar PCC’s sometimes have these type of issues. ARCHIVED; just polish both feed ramps on the right side just enough to not have any overhang where it meets up with the cut on the upper Posted: 1/24/2018 12:34:51 AM EST [#4] Don't want to call the barrel extension canted in the upper receiver socket, but more that it's I also have a 450 Bushmaster, I got it 5 years ago. 00) Should I blend the feed ramp area where it transitions the ramp in the upper to remove the nicks and step?Also should I take a diamond jewelry file and smooth out the sharp edges on the feed ramp/locking lug intersection? Any help in understanding and fixing the problem is greatly appreciated. I really like the CTR-02 set. To maximize your AR 15 build, try out the 9mm chambered 11 inch Modern Series Barrel. Jun 20, 2022 #7 Jun 20, 2022 Misaligned feed ramps and barrel extension means a canted gas block means a gas tube on an angle inside the receiver. It allows the barrel maker to skip the work of installing an alignment pin and unless the cone is oversized they have problem like you see. M4/M4 is clearly correct. Does that make sense? Its a little difficult to explain over text without a diagram / being able to show you physically, but I can try again if that wasn't clear enough. Like a 1911 barrel, without a feed ramp, just has the barrel cylinder, without an angled surface to aid in feeding the bullet. Some feed slightly better than others, however I have no current setup that is acceptable. I snagged a photo chart of it off Arfcom years ago, but can't locate it on this phone at the My scratch built 450 AR and 450 AK are getting close to being finished. It is forged 7075-T6 aluminum, runs M4 feed ramps, works with all standard AR-15 calibers except big bores, has a top Pic rail with T-markings, and carries a Type 3 hard anodized coating. Brand CMMG. Minuteman. Does one , two, or three degress really effect the feeding by that much. Mag sits a little low, causing the tip of the bullet to hit the receiver feed ramps first (this actually is why the m4 feed ramps were implemented to begin with), then catching the tip of the bullet where the barrel extension feed ramps begin, causing the system to lose momentum and jam. Install a ramped barrel, without blending and matching the two ramps, and it will never feed right. Sounds like you did a good job, but gremlins creep into even the best of projects. I have never tried to polish M4 feed ramps, but enough time around guns has taught me to be less aggressive rather than more when it comes to such operations. The feed ramp polish will fix the feeding issue, but just keep in mind that headspace might be tight. 62x39 AR feed ramp question User Name: Remember Me? Password: Forum Rules: Firearms Safety: Firearms Photos: Links: Library: Lost Password: Email Changes: Register: FAQ: Calendar: Today's Posts: Search AR Sponsor: [ARCHIVED THREAD] - M4 feed ramp barrel in a non M4 ramp upper. I noticed my barrel extension has rifle feedramps while my receiver has the m4 cut-outs. 5" AR pistol chambered in 300 blackout. 5” . Once last thing to check is how far the bcg is traveling rearward. Blending the center of the feed ramp, rounding the edges around the feed ramp and polishing does make a difference. Aero Precision upper. The feed ramp on the barrel protrudes just a hair beyond the corresponding cutouts on the lower That sounds to me like there is a sharp edge digging into the case. I’m looking at 20” barrel assemblies with pre-installed Before anyone says "take it back" its 100% a custom build, so with that out of the way heres the problem. But don’t really want I have to modify the receiver. I There are three initial criteria needed to make the M4 feed ramps necessary; a carbine-length gas system, high cyclic rate full auto fire (700-950), and worn magazine For one, if the round is getting hung up on the barrel extension/receiver feed ramp cuts - You have a "clicker", basically the transition from receiver cut to barrel extension ramp This video was a requested video on how to polish and buff the feed ramps on the M4 rifle (M4 Barrel Extension) using a Dremel and some polishing compound an If you MIGHT shoot any LFN or WFN cast bullets, TSX FN, or Remington or Speer 400-405 gr FN, then you might consider blending. But you can polish/blend them. I recently learned about the difference between M4 and standard barrel extension and receiver feed ramps. The opening of the barrel extension is fixed, the feed ramps cannot simply be extended closer to the Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Sometimes it works, sometimes not. For instance, some feed ramp requires a pumice polish, It looks like a blend may be needed. And you're having feed issues. ** Installation requires removal of dust cover. Can someone recommend or point me in the right direction of a good quality upper receiver for an SPR build that does not have M4 feed ramp cuts in it? I have looked and looked and looked. 1st mag, 1st round failed to feed. Twist Rate feed ramps and extensions every AR15 barrel has this little thing on the back that has a pin and the feed ramps to go into the receiver. 62x39. I think having a larger radius on the barrel feed ramp makes a bigger Using the half-round file, I then cut the middle of the ramps down to blend the center area to the top and bottom areas, not taking any material off either end of the ramps. 458 SOCOM, 450 Bushmaster, 12. After N: Blending and polishing feed ramps with a Dremel tool is a quick and easy job. Sometimes the front bottom of the bolt needs trimming or the ramp needs to be cut down. 3) Dremel the feed ramp on the barrel extension feed ramp to make it wider, and then dremel the upper to match, which should obliterate the M4 feed ramps. Includes forward assist assembly and ejection port cover assembly. BEFORE YOU GO MODIFYING IT, check your headspace. Feed ramps play a critical role in ensuring reliable feeding of ammunition from the magazine into the chamber, contributing to a smoother shooting experience. 458 SOCOM forums dozens of times. The front face of the receiver is simply a flat wall. Muzzle is threaded 1/2 x 28. 1st thing you do is polish the ramps w/ barrel out (if building from scratch). I've been running hollow points too no problem. 56 NATO; 223 Wylde; 22 ARC ; 300 Blackout A place to discuss variants of the AR series that are chambered for pistol cartridges, including 9mm, 45ACP, and 22LR. 62x39 is one of the main things you should do to make them function. I've got a quote that I There are few that make 30 cal ramps on the barrel extensions such as V7 and AAC. Any real issues with grinding 80-90% of the feed ramp? The lower I have already has a feed ramp and it has worked with non ramped barrels. 62x39 ramp. My thought process at the time was that the smaller ramps feeding into the wider ramps will probably be fine. As needed I do this for 300blk by widening the ramps a smidge. The Macon Armory and Ballistic Advantage EPC barrels are examples of a proper cone on a barrel. 56 AR Parts; 12. Feed ramp of complete PSA 7. The main issue is the physical interaction of the ramp lips. 350 dedicated magazines and at least 4 diff types/brands if cartridges. 223 but having issues feeding the . 62x39 and all constructive information concerning the platform. I have a Mega Billet upper and lower set on order. Roll pin not included. Fits and Functions in both the KEL-TEC PMR-30 and KEL-TEC CMR-30. I have taken this gun to two local gunsmiths and sent the rifle to the barrel maker. Reactions: Dildobaggins. Remington 597 vs Mossberg 702. Never had another feed issue since masking the 450 mag adjustments. Blend Feed Ramp – You must also buy a barrel to select this option. I think having a larger radius on the barrel feed ramp makes a bigger difference because I was seeing 3point jams just in that. And then I 3D printed some . Current barrel with the ramp doesn’t allow my upper to fit on the lower without removing most of the ramp. Edited January 15, 2015 by Zoomy. 223 Remington ammunition is suitable for feeding through AR-15 feed ramps, but it’s essential to check the manufacturer’s recommendations for specific ammunition types. 308AR. We make some amazing Cars too. This subreddit is dedicated to news and discussion of AR-10's and other 308 AR Platform guns and their Feed cones are the lazy way of doing feed ramps. I tore the rifle down and make sure the feed ramps and mated nicely to the receiver, polished up those three lips and put everything back together. I read at least three threads that said they had trouble with the longer nose ammo and no M4 feed ramps so it got me concerned. I'm concerned about my feed ramp. I want to be able to shoot This space is for pictures of "retro" Stoner rifles and completed or partial retro AR-15 builds, as well as discussions about either. Purchased a new UDP-9 and have been using exclusively Glock factory mags. 3" Aero/BA Barrel", when using a barrel half the length of the 16" barrel the EPC-9 Buffer kit was optimized for it's bound to return the BCG TOO quickly that it's just slamming the next round into the lip of the feed ramps. Aero Precision. the new one is much more contoured with 45* cuts and obviously different. When I think of “no feed ramp”, I think of a 90° shoulder that the bullet has to somehow overcome to get chambered. As long as you match it to your barrel feed ramps you are good but from what I've seen, most barrels use M4 feed ramps. It's easier to get a new upper to put the barrel into. Our uppers include: Stainless Steel BoreBuddy Bolt Group (if selected) with all the upgrades (bolt upgrades: crescent firing pin, power extractor, recoil springs, gen 2 standard collar) 4140 + Nitride Barrel 1:12 twist with 1/2-28 threads BoreBuddy AR22 Upper (with 22lr length ejection port) M-LOK Rail Mil-Spec Charging handle I’ve seen conflicting info, so maybe there is no definitive answer, but can you install a barrel that is M4 feed ramp cut on a receiver that is not? I understand vice versa can be a problem. ARCHIVED; Posted: 4/26/2011 4:06:11 PM EST Posted: 4/26/2011 4:19:11 PM EST [#1] Quoted: Is it kosher to add M4 feed ramps to a standard upper to match an m4 ramped barrel? You may want to reword the title. Reply reply If your toothpick gets caught in the transitioning space from the receiver feed ramps to the barrel feed ramps you do not want that if its the AR Sponsor: [ARCHIVED THREAD] - Barrell and Upper Feed Ramp Not Lining Up. So yeah, there are more than a few making barrels with the different barrel extensions to optimize 300blk This community is dedicated to the AR-15 chambered in 7. $114. which feed ramp is best? I'm building a BRS47 kit to run a 14. Would polishing the feed ramp fix this issue? There doesn't appear to be any ridiculous burs. r/AR10. I've checked it and compared with my other 300blk and I'm pretty positive that the feed ramps are the issue. 7×42, as well as other large diameter cartridges. The cone was a lot larger and never since I haven't had a single feed issue. 56 barrel with feed ramps am I going to have issues? Do I need to only use a longer barrel with longer gas system? I’m wanting to make this build a longer rifle length anyways. Looks can be deceiving. Dildobaggins Major Hide Member. The original design of feed ramps were cut in the barrel extension from the magazine to the barrel. 125 and get an adjustable GB. Unfortunately, I am having some I have a bit of a dilemma. Reply reply CrayPepper • New to reddit and this page, just thought I would show a fix I did on my 350 upper, I love the rifle and the round once I straightened the feeding issue out. 5" barrel. When you run a google image search, Check the ejection port and sure enough there’s a round stuck on the feed ramps leaving three indentations on the bottom of the round at the bottom of the neck. 2 Likes. Feed Ramp Concerns .  I Polished AR Feed Ramps. 50 Beowulf single stack ramped up followers for my PMag 10 rounders in the same way as the tromix followers, and that worked extremely well. 00) Big Bore Billet Upper Receiver quantity. 62x39 types here on this forum, stuck in the past, who insist this is the best "feed ramp take a Dremel and add your own additional enhancements to the feed trough so it doesn't overhang the upper receiver M4 feed ramps, blending the barrel Barrel Feed Ramp Polishing can correct numerous potential problems that can be present in AR's. I know that these are not quality rounds, but it’s what I had to test fire the first go around. Toggle Nav. Can feed ramps affect the performance of an It stands the test of time, as opposed to the factory plastic feed ramp which can quickly wear out of tolerance, leading to frequent feeding issues. Barrels are finished with a black nitride coating for extended durability. , the M4 ramps on the barrel extension are set a little further "back" from the M4 ramps on the receiver). The opening of the barrel extension is fixed, the feed ramps cannot simply be extended closer to the AR-15 Feed Ramp Problems – School of the American Rifle Google that, it's in the article. 5. Posted: 4/26/2016 12:04:11 PM EST loaded anyway. Look at the picture Tony (TROMIX) has posted on his web site ( link ). Mated an Anderson ar-15 lower to gen 4 9mm upper with feed issues. This is where things start to get a In this Brownells Tech Tip, Caleb dives deep into the innovative design of the feed ramps on the BRN-180 in 350 Legend, showcasing why this setup stands out This subreddit is dedicated to news and discussion of AR-10's and other 308 AR Platform guns and their variations. Easy does it, you can reach the ramps from the underside of the assembled upper receiver and barrel. 312 and while being very careful to keep the angles correct, I opened Apparently a lot of the 9 mm AR barrels have very steep feed ramps. I have found that the M4 feed ramps can help with cheap imported JHP rounds that The Feed Ramp uses the hinge pin of ejection door and mounts in place of the ejection door. I don't recall the numbers off hand. Some parts have already been ordered, I'll link those in below. The feed ramp geometry of a standard AR15 barrel extension is not meant for 7. But I had massive feed issues when I first built it from the mismatched feed ramps and that handled it Reply reply More posts you may like r/AR10. Thanks for any help Posted by u/aardvark_army - 6 votes and 11 comments Had to try the 20 dollar taccom feed ramp upgrade for the Glock dedicated AR9 systems. Thanks for any help I've blended my uppers and opened several ejection ports with a Dremel and Pillar file on the port door and just the Dremel on the feed ramp blend followed by a polishing point. 350 feed ramps looked exactly like this. 120/. Does anyone have experience with the Tromix feed ramp blending? I'm new to AR builds and trying to understand what the feed ramp is being blended The AR-15 feed ramp refers to the surface of the rifle's upper receiver that guides cartridges into the chamber of the barrel. Issues with feed ramps can be more common than many builders think, especially when you’re perhaps Using a 3/8 inch sanding drum on a Dremel or fine rat-tail file or chain saw blade file, only blend just the little shelf BELOW the feed ramps. The barrel company did add a bevel to the face of the barrel Matching / blending the feed ramps with a Dremel type of grinder and polishing along with polishing the sharp edges of the barrel extension feed ramp bolt lug abutments edges. Maybe rifle ones are more on longer barrels or AR-10s? From what I know, M4 feed ramps are a lot more reliable so go with that and check that your barrel has M4 extensions. I would widen the bottom of the ramp, and try to blend the edge of the ramp with the existing cone so there are no high spots that the round can catch on. Blend Feed Ramp . 5" barrel it was more like the 300BLK feed ramps. Due to the shallower angle of the cut it was necessary to extend the cut in the breech down to the bottom of the upper receiver. Current configuration is 7. Timney drop in trigger. There's basically a flat, vertical wall, that I'm afraid my cartridges will hit nose first, and not actually feed into the chamber. or about the same price as the Mega set. which I am rechambering an AR-15 for a wildcat. 300 AAC Blackout Ammunition 147 Grain FMJ. 56mm or . I am not going for total correctness and being able to choose from the infinitely more numerous M4-cut offerings would make life much easier. The Using a barrel with standard feed ramps creates the situation depicted in the lower left picture, bullet noses tend to get caught in the "gap" created by the M4 feed ramps. The rifle-platform M16s don’t use them. See More. bolt comes about halfway forward (it started to feed the round) and that was it, pulled back on the charging handle and let go, it chambered. This would match photos I've seen of Tromix feed ramps and other more premium barrels. I have reamed the barrels to with in a thousands or 2 and will have the head space finished when I have the correct headspace gauges sent (PTG sent non rebated rim guages)and I now need a pic of the AR feed ramp and a gas port diameter for the AR (16") 33&bih=436), the six o'clock Feed Ramps. I bought a KS47 first and it looked like the BB feed ramp, but when i bought the Sanders Armory 12. Can't have LRBHO in upper or lower - it gets in the way. 50 also have seen this on PSA AR-V lowers ( takes cz scorpion and psa ak Blend Receiver Feed Ramp to Barrel Feed Ramp (+ $ 30. The standard AR rifle type feed ramp is a 45 degree cut into the bottom of the breach of the barrel. I’m assuming my inconsistent feed issues are related to the 2) Dremel the feed ramp to match what the barrel currently has (concerned this won't work). That will Think about the relationship between the cartridge and the feed ramp. How long is the barrel? Shorter barrels tend to have them. was optimized for it's bound to return the BCG TOO quickly that it's just slamming the next round into the lip of the feed ramps. With the barrel fully seated and the barrel nut torqued down to 45 ft-lbs, there is a small gap between the feed ramps on the barrel extension and the M4 ramps on the receiver. There was great thread on this from last year with pics, including a picture of a Bushmaster 7. Jun 26, 2020 1,042 500. The mil actually only specs “M4 feed ramps” for use in its M4s. You don't need a giant feed cone that leaves too much of the case unsupported 90% based on what? How much, specifically, is too much unsupported case? Do you have evidence of case blowouts resulting from unsupported cases in 9mm AR barrels with "giant" feed cones? I don't. However, if there are deep scratches going across the feed ramp that a sharp-edged bullet can catch on while being jammed up the ramp then smoothing (and then polishing if desired) the feed ramp could definitely make I don't have much to add re: feed ramps, but I notice that's a Gibbz (or Gibbz-type) upper. Posted: 9/9/2020 11:44:43 AM EST [#6] Not How much do feed ramps matching matter on an AR-10? (pics) ARCHIVED; AR-15 » I can bet that, aside from all of the other parts variables and "known ramp/feeding ish for 8. Posted: 7/18/2022 2:39:04 PM I've decided on a light weight AR with a 16" barrel, free float handguards and flat top upper. And t We recently reached out to Chad Albrecht at School of the American Rifle to discuss AR-15 feed ramp problems. I noticed that the feed ramps don't exactly line up between the upper and barrel extension. If someone is building a 20 inch AR, there is no reason to get M4 feedramp barrel or receiver, therefore, it is perfectly legit to seek out an A3 receiver, which should not That said, I believe a lot of the newer retro uppers have the option of M4 ramps or no M4 ramps Edit. (+ $ 30. M4 extension to rifle receiver, okay for most part, m4 extension to m4 ramp receiver, best, rifle extension to m4 ramp receiver bad, rifle extension to rifle receiver best. Wanted to build a simple, plain jane AR-15 This subreddit is dedicated to news and discussion of AR-10's and other 308 AR Platform guns and their variations. I have an aero upper and lower with a drop in barrel from a well respected barrel company but the feed ramps do not guide the bullet into the chamber. WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Correct, it will function with and without can. In other words. By MinnMD66 April 10, 2018 in Building a . Manufacturer. Mossberg 500 vs Remington The Mean Arms MA-Loader solves this problem, and the company developed this MA Feed Ramp to smooth this loading process even more. no ramps. ( both sides ) About the 07:30 on the left, and about the 04:30 on the right mainly fed via Magpul mags. It does appear that there might be a couple of sharp points at the top of your ramp where it transitions into the chamber. Back. The upper feed ramps seem to be a little shallow compared to the barrel extension. Install, operations, testing and results. AR/AR is the original, and it works. How it functions in actual use and in a variety of builds is what counts in my book. Eyeball the feed ramps and the port size has been posted here and on the . If your feed ramp looks super [ARCHIVED THREAD] - 7. This small but critical component plays a vital role in ensuring reliable feeding, facilitating I would blend the barrel ramp to match the upper, either by file/polishing or dremel (carefully). gauges and fixtures. M4 extension to rifle upper (no M4 feed ramps) OK but maybe not always reliable, rifle to rifle is best, same with m4 to m4 feed ramps. 350 rounds. The leading cause that leads to the development of the M4 feed ramp is the gas pressure from the carbine gas system that is increasing along with a high cyclic rate. Full Member. Is there a design method or "rule of thumb" for This loader and feed ramp are for those using AR-15s and AR-10s with fixed magazines (where required by state). 7 x 42 Caliber (aka 50 Beowulf) 375 SOCOM Barrels, Ejector and feed ramp look fine. However, I have the opportunity to purchase a NIB JP CTR-02 upper and lower set for near half price. Reply A customer blew up his AR-15 while attempting “wet pops” with his suppressor. Premium AR-15 Barrel Extension with Wide Feed Ramps – the ultimate enhancement for your firearm platform. This CMMG AR-9 Feed Ramp for 9mm Mk 9 AR-15 Rifles works only with the CMMG Mk 9 dedicated 9mm lower. How can I tell if the feed ramp needs to be replaced? Visible damage or wear on the feed ramp, as well as frequent feeding issues, can indicate that it may need to be The M4 ramps are cut deeper to begin picking up the round faster. I was moderately concerned about the same thing on a In the future, if given the chance, I will go over polishing AR15 feed ramps. Hi all, First of all, I am new here and a big fan of PSA! I bought a lower from them and I’m quite satisfied! The feed ramps were sized for a 5. M4 feed ramps will extend the barrel extension and the upper receiver. com No feed ramps + M4 extension is good to go. The AR platform requires few, if any, power tools to assemble. The scoring is likely be due to the sharp edges, If you just break the corner and Blending the center of the feed ramp, rounding the edges around the feed ramp and polishing does make a difference. The bolt either rides over Maybe that’s where we are differing, in what we consider a feed ramp. Blend it down. Feed ramp polishing calls for meticulousness in many areas, including understanding the gun type and its feed ramp. PCC Division in IDPA 2020. 223/5. 62 builds. it is the AK74 trough style. com I believe what Deadshot Barrels was trying to do was create a more gentle feed ramp because of the large bullet diameter so it would feed more reliable, but with those high chamber pressures, I would not trust the removal of one barrel extension lug and the two weakened by material removal. The gun is going to be used as a hog gun, with an emphasis Are there different types of feed ramps for the AR-15? Yes, there are different types of feed ramps, including M4 and M16 style ramps, each with specific designs to optimize feeding performance. Works with 375 SOCOM, . So we put on a 10. I contoured the upper a little to blend it to the feed ramp on the barrel and that improved it. I have looked at the feed ramp shapes of different cartridges. Shop. M4 ramps extend into the upper receiver itself The barrel extension cuts and the cuts in the aluminum receiver blend together. OP, pictures of the issues in process would help. I doubt it, but if that ramp is not deep enough, problems are guaranteed. My understanding is that a m4 extension feed ramp barrel is fine with a standard rifle upper receiver, but not the I've got an 8. View My CMMG MK 4 RCE rifle won't properly feed. I have 2 uppers I'm looking to use for a build. I would just blend the ramps together and polish them out. Add to cart. AR-15 upper receiver with ejection port opened up to allow the large caliber cartridges to eject. 308 AR Technical ; Building a . 308AR ; Feed ramp Question Feed ramp Question. If a factory-made feed ramp is smooth (void of machining marks, etc. It will guide you on the best technique to polish it. ), then polishing it to a mirror-like finish probably will not improve reliability one whit. TFB Armorer's Bench: 2022 TFB Armorer's Bench Wrap-Up. Anyway, I knew that there was not great alignment of the feed-ramps when I assembled this . The CTR-02 set does not have the M4 feed IIRC, it's intended for competitors and is for Glock setups only. To check this, pull the charging handle to the rear and then stick your finger through the ejection port and push on the bcg rearward. I’ve tried duramag and CMMG . I’m assuming my inconsistent feed issues are related to the Enlarging the feed ramps for 7. Positioning-centric information is changing the way people, businesses and governments work throughout the world. What is the purpose of a feed ramp? The purpose of a feed ramp is to guide the cartridge from the magazine into the chamber smoothly and consistently, preventing feeding malfunctions. 350 legend. GBMaryland Herr Oberst Step 2 Get a Dremel with green heads to grind down the ramp (focus in the barrel ramp) until its one continuous smooth surface: Tips I prefer: Do a little bit at a time run it same the same angle as the feed ramp, focus on grinding the barrel ramp to be flush with the receiver ramp: Keep rechecking with bullet tip until it runs smooth: Most standard 5. Had to try the 20 dollar taccom feed ramp upgrade for the Glock dedicated AR9 systems. Do feed ramps affect the accuracy of an AR-15? Feed ramps are not directly related to the accuracy of an AR-15, but they do play Yes, all AR-15s are equipped with feed ramps, as they are essential for reliable feeding and functionality of the firearm. AR-15 / M4 Feed Ramp Polishing / Cutting. Use a 3/16 conical grinding tip to eliminate any lips and a similar sized rubber polishing tips to remove the grinding marks. The barrel lugs and feed Ramps don’t have any obvious rough spots (but again with big bore straight rounds can tolerate and resistance ). If you are good with applying your own coating or finish, Anderson sells these “in the white” for as low as $65. Mount barrel then lightly blend the upper ramp cuts to the bottom of the barrel ramps, and that To fix a feed ramp issue with your AR-15, you can try polishing the feed ramps using a fine-grit sandpaper or a polishing kit to ensure smooth feeding of ammunition into the chamber. Those are standard feed ramps. This is how the barrel sits in the There are other oddball versions. If you need to open up the ramps for a specific reason then you can't really so that with barrel installed. The MEAN Arms Feed Ramp replaces the dust cover and works the same way as a flared mag-well on a pistol. Complete with enhanced feed ramps, this barrel is a must try. 56 and the cartridges would jam up every time. AR-15 Barrels. Here's a purpose-built 7. It was a Hardened Arms upper receiver and I ended up trading the upper out for an Anderson sporter style that doesn't have a dust cover. AR-15. AR So, for 9mm blowback AR’s it is crucial to have a good feed ramp to properly seat the next round. My bca. AR-15 feed ramp issues Yea, I debated on polishing the ramps but once I got them widened I was running fine so I didn't bother. ramps. Americans make amazing Guns. Slight chance the barrel is pressed back a little too far causing the issue as well. Edit: the o Lu time I think there are issues is mixing M16 feed ramps with M4 extension and vice versa Reply reply Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Share That aluminum receiver will be forced to blend with the barrel extension feed The M4 ramps are cut deeper to begin picking up the round faster. uwdswlm fxwwk vqpfwl ghjfis jkrc mevcsl llxnlv mdufpgpud xspocsg dkop