Again, kids running with scissors did this to us.
PSA PA-10 Magazines, quick question. | Sniper's Hide Forum Maybe after Magpul completes their move they'll address some of their mold issues, 'til then it's best to check. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I ordered 10 mags from brownells after I saw they didn't ride the bolt up. Reddit and its partners use cookies and similar technologies to provide you with a better experience. I think I may just shoot it a few mags and see what happens.. The witness make could be from the locking lugs on the bolt, mine don't have it so I can't say for sure. The problem is pretty simple, the magazine's follower is failing to raise the bolt catch. I recently assembled this Noveske rifle and bought 3. What corresponding dimensions do you have? I get asked a lot why, in almost all of my reviews or videos, I use good old-fashioned U.S. GI steel magazines in lieu of Magpul PMAGs, a popular alternative that most shooters these days are familiar with.
New production Colt-pattern U.S. GI mags are four to five dollars cheaper than generation three PMAGs. Also if you rest your gun on the mag when you shoot (by the way don't do this) it will shove most mags including FN factory ones. My Colt LE6920 bolt is not locking back when the last round is fired nor when I insert an empty magpul pmag magazine. I just checked and my BM lower does the same.
Using PMAGs can actually do irreparable damage to an FN SCAR rifle. 10: Top of lower receiver to top of magazine release = 0.696, Fig. When I release the bolt, the back end of the follower is sticking up, and the bolt will strip the follower right out of the top of the magazine if I let it go. 80% ar-10 bolt jammed m5e1 pmag stuck 1 2 Next Mk3Mstr6Mchne0 Atlington, Washington Messages 12 Reactions 28 Apr 30, 2019 #1 this is kind of hard to explain, I am also pretty experienced with the AR platform, my M5e1 upper is assembled on an 80% lower. I was curious about how other magazines behaved in the lower so I measured them to simply verify reasonable consistency. My solution is to raise the bottom rear edge of the mag well by approximately 1mm to 1.5mm. That should tell you what's going on. Copyright © 308AR.com 2023
Pmag VS Hexmag I've heard of Issues with Pmags and ARs due to Pmags having more material on the rear of the mag, creating more distance between the follower and the Bolt Catch tooth which isn't as far with USGI mags, and wondering if it is that, plus tolerance stacking being my Catch has so much wiggle room on the Standard M&P. Your previous content has been restored. Copyright 1996-2023 AR15.COM LLC. Very carefully and pay attention to how the bolt catch actually works, if you did you should figured it out almost immediately. Hexmag for 260rem and pmag for 6.5creed. I dont readily know of a solution to the feed problem but I dont want to alter magazines to compensate for a receiver flaw. Mag still wobbles the same and the error still remains. Once bolt was locked to the rear or closed, it would engage the catch and seat properly on the "bad" mag. What measurements do you have on your lower? How do I make the install permanent for use in states such as. Mine seem to be fine after trimming of course. A new one can be sent upon request. Checking mine now!
Ar10 bolt jamming up on PMag/mag release | Northwest Firearms Paste as plain text instead, They all functioned fine. It is tight getting the depth gauge to the lower so the caliper may need to be slightly rotated but not in a direction that will affect the height measurement. Yes I had to trim the left side rear notch square before the BC laid perfectly flat. If so, it might be worth trying another batch of pmags in case it's just a mold variation. Alex is a Senior Writer for The Firearm Blog and Director of TFBTV. No need to answer that last question. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. Ok, so I have searched the hide and my googlefu is actin a fool like my pmags You must log in or register to reply here. You'll need to clay the upper, just like you'd do if you were checking an engine for piston-to-valve clearance. Also check out this great, descriptive video as the Gen3 7.62x51 PMag followers have a slightly different contour which can catch the feed lips, and not rise high enough to engage the bolt catch properly on DPMS Gen 2 style bolt catch levers. Why not just ditch the PMags?
Bolt Catch issues w/ Pmags + few questions - AR15.COM For me I had to shave off small pieces of the mag to make the bolt catch itself latch. Loading magazines at home means more shooting time at the range. The plunger and compressed spring are 0.490. I started construction with the lower at 80%. This will allow for easy removal of the magazine . You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. I sent an email toDaytona Tactical support telling that themagazine catch hole is0.049 too low compared to others I've seen drawings of and am awaiting their response. Magpul Pmag Bolt Hold Open Problem - YouTube 0:00 / 7:05 Magpul Pmag Bolt Hold Open Problem It's A Gun Thing 24 subscribers Subscribe 143 16K views 3 years ago Does your bolt on a. I'm sure someone here can find that thread on the mag catch heights. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. TSiWRX. Also, since the follower rides too high the pmags I used made a dent in the follower from the bolt. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. A forum community dedicated to FN Herstal firearm owners and enthusiasts. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. The Magpul PMAG is a great, well designed magazine that many people like and use in various rifles around the world, but over the years I have discovered that they are not the best option for me personally. PMAGs are pretty notorious for not wanting to work in various platforms, including guns like the HK-416 and M27-IAR. The plunger hole was too shallow but even after deepening it, the catch still isn't pushedup high enough because the magazine follower is too low. https://www.luth-ar.com/product/buffer-tube-spring-assembly-kit-308/, Bolt catch is from a TacFire .308 AR Lower Parts Kit (not for an AR-15). Im almost through with my build, however I have noticed that my Seekins enhanced Bolt Catch in my Anderson lower is not locking back on PMags like it does on my aluminum and steel magazines. The cause could be one of the following: Bolt catch assembly is too far away from the back of magazine well Finger on bolt catch is too short Slight slop (looseness) on magazine, or magazine faceplate The main concern is the failure to feed. Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. Is it the length of the plunger? Let every feeble rumor shake your hearts!
Problems with failure to feed AND failure to catch bolt I find it interesting that in the "Bolt Catch Issues" section of the article, they mention that if the gun's bolt-catch fails to operate properly, instead of simply checking other mags, their first-line troubleshooting is to check the critical dimensions . Pmags have worked fine in the past. Not trying to be a dick, but can you summarize in one sentence what the rifle is NOT doing? The mags cause the bolt catch to rise ever . It did. Hope this helps. The Fix: 1.) Maybe it's raising it too much, but a locked bolt is a locked bolt. Repeat for the P-mags and note any difference. The bolt partially strips a round but doesnt chamber it and just drags over the top of it. If someone can answer that, I'd appreciate it. With the mag catch removed, a mag can be inserted so far into the mag well that the follower moves upward beyond the point where it can lift the bolt catch. For a while you only had so long to make the edit and then never again. We are all guilty of doing this, in one way or another. *Must have a registered ARFCOM account to win. Powered by Invision Community, Problems with failure to feed AND failure to catch bolt. This will severly damage your bolt group over time. I can manually push the bolt catch tab in to raise the catch higher. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. This is not the case with PMAGs in many platforms. I thought it was a nonissue with the gen 3. Iiiiffffff I owned one of those evil black rifles , I might buy the Hexmag brand when they went on sale for $6.95 ea. Fig. JavaScript is disabled. Please refer to our installation videos and the instructions on your packaging.
Check all your mags, especially PMAGS, but check all mags!! After installation of the ARMagLock the button is. Some people used a 9mm bolt catch, others shaved out the bolt catch area on the mag itself. The mags cause the bolt catch to rise ever so slightly and drag on the bolt lugs, which results in significant damage over time. The problem apears to be that the mag follower tab does not protrude out the back of the mag far enough, the follower wants to ride more . View attachment 25288. I can manually push the catch tab in to raise the catch higher. 11: Top of lower receiver to top of magazine release hole = 0.692. Display as a link instead, Come join the discussion about optics, modifications, gunsmithing, styles, reviews, accessories, classifieds, and more! Cookie Notice
If you use PMAGS with your SCAR, READ THIS! - AR15.COM I'd like to get measurements with lowers that did not start as an 80% because there have been reports of80% lowers having the same problem as mine. My external measurement as shown in figure 11 is the top of lower receiver to top of magazine catch hole which is 0.692. So far so good. Well, there are several reasons for this. It was initially 0.323 deep. Any use of this content without express written consent is prohibited.
Upload or insert images from URL. I deepened the hole to 0.480. The bolt catch rides up but not on the black polymer part of the mag, but the follower. 7: Bolt catch fully extended, plunger removed = 0.443, Fig. What changed? Have the power still to banish your defenders; till at length your ignorance, which finds not till it feels, making but reservation of yourselves, still your own foes, deliver you, as most abated captives to some nation that won you without blows!". If you have something major to change a quick PM to a mod will get it fixed for ya. You must log in or register to reply here. Any use of this content without express written consent is prohibited. Continue until the upper lip is flush with the upper receiver when closed. edit: i just got them. [ARCHIVED THREAD] - Another P-Mag bolt catch issue. Here's a photo showing the mags. Just checked all of mine, I'm not sure how HC's ended up with a witness mark where it's at. All it takes is one out of spec cartridge that the extractor fails to grab leaving the cartridge behind in the chamber, going back then forward and pushing a fresh round against the cartridge left behind and you have the dreaded double feed where everything locks up. This is not the case with PMAGs in many platforms.
TFB Review: Over 1,000 Rounds With The Springfield Hellion Copyright 1996-2023 AR15.COM LLC. Because both symptoms exist, it seems that the components within each receiver may be too far from each other which leads me to suspect that the interface between the upper or lower is too thick. Coil bind on the spring? Does your caliper also have a depth gauge that can get the internal depth to the mag catch as in figure 10? The bolt catch problem can be solved by drilling the plunger hole deeper but Id first like to solve the feed problem. We have heard reports these malfunctions often happened with Wolf, Tula, and Brown Bear ammo. That said, there is a reason that there are generations of these magazines. Could the magazine be too low? I deepened the hole to 0.480. Your enemies, with nodding of their plumes, fan you into despair!
PMAG feeding problem, jamming on chamber face Can anyone offer insight to the cause of or solution to these problems? Pasted as rich text.
PMAG bolt lockback fix | Springfield XD Forum After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt home. JWardJune 15, 2020 in Building a .308AR. IMHO, I would get a USGI / high / known quality bolt catch and try one of those. But if you're having this problem just take the flat of a knife blade and, holding the blade perpendicular to the magazine body, scrape a little bit of the plastic away until your bolt latch has free travel. P-Mag Follower and Bolt Catch Engagement *Issue Resolved! Really appreciate your thorough pictures provided, that's an excellent way to provide data on your issues. 8: Bolt Carrier to upper receiver = 0.283. These same parts are available from other vendors. This can cause partial engagement of the bolt catch and result in unintentional contact between the bolt carrier group and the bolt catch during normal weapon operation. The bolt catch problem can be solved by drilling the plunger hole deeper but I'd first like to solve the feed problem. Take off your upper receiver, throw in that empty mag. Note here that this PMAG will not insert into this civilian version of the HK-416, due to the odd body geometry. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Open the receivers to the maximum limit of the pin capabilities. If you could post a pic of that comparison, it would be helpful. I had that issue with a couple Lancer mags, ended up replacing that bolt catch when it broke with a Sig 716 bolt catch and now the one Lancer mag I saved that had the issue works in that rifle. When the PMAG 20LR is inserted into the magazine well, some MWS rifles exhibit interference between the bolt catch and the rear of the magazine. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.