This is. Hexmag for 260rem and pmag for 6.5creed. New firearms are designed around common Colt-pattern mags, and Magpul has to keep accommodating new designs with generational changes, or new offerings altogether, like they did with the EMAG. Is it the length of the plunger? Excellent work with the pics and details. The plunger and compressed spring are 0.490. I don't and I didn't . honest. 11: Top of lower receiver to top of magazine catch hole = 0.692. PMAG bolt lockback fix | Springfield XD Forum It's a whole lot of details. What's stopping your bolt catch travel, when you have that plunger and spring in there? 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). I'd delete it if I could. Using PMAGs can actually do irreparable damage to an FN SCAR rifle. JavaScript is disabled. I don't know if this is an indication of another problem being that the bolt catch is too far left. The mag doesn't need to come up so far as to cause this condition but the bolt catch tooth begins at the center of the follower then teeters towardthe edge until it drops off. 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. PMAGs are pretty notorious for not wanting to work in various platforms, including guns like the HK-416 and M27-IAR. I have a DPMS pattern LR-308 under construction that has a failure to feed and fails to catch the bolt on an empty magazine. (not my lower, but my exact problem!) What changed? Magpul needs to tweak their mold a bit before they make the claims they do. the bolt catch tooth begins at the center of the follower then teeters towardthe edge until it drops off. PMAG problems - Midwest PX - New Jersey Gun Forums I wish I could edit the original post to correct this. 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. i have a gen 3 pmag without the window and its kind of frustrating. 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. I picked up a SCAR 16s last week and put 50 rounds through it with no problems at all (using the FN mag). Pmag Problem | Northeastshooters.com Forums Well, there are several reasons for this. Again, kids running with scissors did this to us. Like you hear military folk say, Ounces equal pounds. And in the case of the PMAG, a full loadout saves the user a bit of weight. I inspected my mags after I received my order and that's when I saw the bolt catch was up and went wtf face palm*. How do I make the install permanent for use in states such as. The bolt partially strips a round but doesnt chamber it and just drags over the top of it. Also the follower rides the bolt catch up A LOT. 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!". NEVER use this product outside the standard method of operation as it will cause the rifle to no longer be in compliance and you risk arrest. The P-mags always functioned. JavaScript is disabled. Your link has been automatically embedded. Mar 3, 2022. The BC looks the same so this is a non issue. It may not display this or other websites correctly. 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. Guide to modifying .308 Gen3 P-Mags to work in DPMS G2 The mags cause the bolt catch to rise ever . I think I may just shoot it a few mags and see what happens.. Gonna remove the anodizing, but making omelets requires the breaking of eggs; so. 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 . Repeat for the P-mags and note any difference. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. edit: i just got them. As soon as my wife lifts our household arms embargo, I will have one. Depending on the rear takedown pin you are using either pull the pin (Tacticool pin) or actuate the pin to disengage the receivers (KingPin & Hyperswitch). Pmag VS Hexmag The plunger hole on this 80% lower was supposed to have already been finished. Any use of this content without express written consent is prohibited. Pmags have worked fine in the past. Would anyone be willing to measure and report their heights from the top of the lower to the top of a cartridge case head? It isnt that they are bad (in fact they feed and run very well in certain firearms) but in my years of shooting I have simply found that other products may better suit a myriad of shooters. If so, it would cause both symptoms. Alex is a Senior Writer for The Firearm Blog and Director of TFBTV. Problem: 30 round Pmag follower doesn't catch on the front lip of the bolt catch. Bolt Catch issues w/ Pmags + few questions - AR15.COM /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. Note the different rear opening. For a better experience, please enable JavaScript in your browser before proceeding. #5. I realized you can fix this by filing or dremeling off some material on the rear of the mag body, or by using whatever generation of magazine they implemented to fix this, or you could just arrive at my next point and save four or five dollars more by purchasing a GI mag. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I have a substantial cache of PMAGs, I already performed the PMAG mod by cutting the back of the mag so the bolt catch wont activate. Let every feeble rumor shake your hearts! Take off your upper receiver, throw in that empty mag. Before that would be a solution - you need tocheck how much further into the upper receiver that your magazine will go. We have heard reports these malfunctions often happened with Wolf, Tula, and Brown Bear ammo. 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. Cookie Notice Some people used a 9mm bolt catch, others shaved out the bolt catch area on the mag itself. NEVER attempt to cycle the bolt carrier group (manually or otherwise) or fire a round with the action open (receivers separated), as this may cause serious injury or death AND potentially make your rifle non-compliant with laws and regulations! The bolt catch on the AR platform is directly in the center of the mag, so the shape of the notch doesn't matter on the AR, but on the SCAR, the bolt catch is offset slightly to the left. Could i just have faulty mags? Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Why not just ditch the PMags? If the solution to the feed problem involves a modification to the upper or lower, Ill test the bolt catch and take another measurement as shown in figure 6 (not figure 5). The witness make could be from the locking lugs on the bolt, mine don't have it so I can't say for sure. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. https://www.cdnnsports.com/catalogsearch/result/?order=relevance&dir=desc&q=Sig+bolt+catch. 8: Bolt Carrier to upper receiver = 0.283. Paste as plain text instead, "And here remain with your uncertainty! Because of the cost difference, weight, compatibility issues, and not dropping free in many platforms, Ill stick with what I know works. PMAG "bolt catch interference" Issue with LMT MWS This is not the case with PMAGs in many platforms. I recently bought 3 for my acr and when comparing it to the other mags i have for it, it seems the internal part does not come up high enough to lift the bolt catch. I can manually push the catch tab in to raise the catch higher. Upload or insert images from URL. Either the hole gets deeper, or a couple coils come off the spring, or the tail on the plunger gets shortened. I thought it was a nonissue with the gen 3. Additionally, unsafe and unintended methods of operation of the FIREARM may also cause non-compliance. 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. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. How is it though that my. UPDATE: After seeing these pictures, I checked my factory mag. Loctite (red) or epoxy the Allen bolt into the standoff (threaded barrel tube), and lightly drilling the bolt head facets with a 1/8 drill bit until the socket teeth are rounded. The bolt catch rides up but not on the black polymer part of the mag, but the follower. Think it could be magazine springs? PMAG Problems - Calguns.net Yes I had to trim the left side rear notch square before the BC laid perfectly flat. For a while you only had so long to make the edit and then never again. *, MISC Training Course Announcements & AAR's, Former Vickers Shooting Method Regional Instructors, Pacific Northwest Training and Networking, All Other Longgun Parts, Accessories, & Magazines (EE), Handgun Parts, Accessories & Magazines (EE), If this is your first visit, be sure to magpul pmag milspec bolt catch problem : r/ar15 Always use the firearm and AR MAGLOCK products as designed, engineered and intended for use. Another P-Mag bolt catch issue? - AR15.COM [ARCHIVED THREAD] - Bolt Catch issues w/ Pmags + few questions, https://www.triggershims.com/ar_15_shims.html. Display as a link instead, Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. You must log in or register to reply here. His problem is that the front tab of the bolt catch is not engaging on the follower of the PMAG, so the bolt won't hold open on the last round. Depth of the hole? Continue until the upper lip is flush with the upper receiver when closed. Yours is 0.6640" for a difference of 0.028" which isn't as much as I expected based on drawings which is 0.049". : "Watch what people are cynical about, and one can often discover what they lack.". The upper, lower, and jig are from Daytona Tactical d.b.a. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Definitely try another couple magazines, including one from another manufacturer. If you have something major to change a quick PM to a mod will get it fixed for ya. It knows when youre cheating..like Santa. IMHO, I would get a USGI / high / known quality bolt catch and try one of those. Maybe it's raising it too much, but a locked bolt is a locked bolt. Suggestions? Mine seem to be fine after trimming of course. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. 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. 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. Copyright 1996-2023 AR15.COM LLC. New production Colt-pattern U.S. GI mags are four to five dollars cheaper than generation three PMAGs. Again, though, I would like to recognize that PMAGs are a quality product and Magpul is very receptive to user feedback. Elite Aluminum Products although I dont know who made them. Insert the steel DPMS mag and lock the bolt back and look through the ejection port and note how much of the bolt face the bolt catch covers. I personally dont see why I would spend an extra five bucks for magazines that wont drop free in all my guns, may or may not be compatible with new and upcoming guns, and my next point: wont fit in all my guns. 10: Top of lower receiver to top of magazine catch = 0.696, Fig. The problem is interference between the bottom edge of the rear wall of the mag well and a ridge running horizontally across the PMag spine. If your upper and lower receivers are MIL-SPEC the ARMagLock will work. Thanks for this HC, I'm going to inspect my Gen 3's to see if mine have the same witness marks. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. You are using an out of date browser. Copyright 1996-2023 AR15.COM LLC. How To Fix AR-15 Bolt Catch Lock Failure for PMAG's I'm looking forward to hearing some comments on this. Pics to follow. Problems with failure to feed AND failure to catch bolt Your enemies, with nodding of their plumes, fan you into despair! UPDATE: after tinkering with it, Ive noticed it only happens on 30 round mags. I deepened the hole to 0.480. I used a digital caliper depth gauge as shown in the picture. i have my pmags and i am just noticing a problemtried it out on 3 seperate lowers all of them have the same problem: http://img.photobucket.com/albums/v488/derek45/AR/IMGP5612.jpg, the tip of the bolt catch that is supposed to be actuated by the back end of the magazine follower is missing the follower and end up not catching the bolt once the mag is empty. 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 . This will severly damage your bolt group over time. PMAG feeding problem, jamming on chamber face Open the receivers to the maximum limit of the pin capabilities. Once bolt was locked to the rear or closed, it would engage the catch and seat properly on the "bad" mag. My fix was with Gen2 pmags. Indeed, if could be too low, and we have a HELL of a thread here on that very issue. Clear editor. The plunger hole on this 80% lower was supposed to have already been finished. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt home. Powered by Invision Community, Problems with failure to feed AND failure to catch bolt. 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. Thanks shooterrex. Check all your mags, especially PMAGS, but check all mags!! Note: Firearm will not retain magazines until a replacement magazine catch solution is re-installed. Also, since the follower rides too high the pmags I used made a dent in the follower from the bolt. I dont have another LR-308 with which to compare my measurements so I dont know which dimensions are problematic. It was initially 0.323 deep. Fig. We are all guilty of doing this, in one way or another. If you could post a pic of that comparison, it would be helpful. Then collapse that spring ON the plunger, to coil bind, and measure the OAL of both (with spring in coil bind). Can anyone offer insight to the cause of or solution to these problems? Why I Don't Use PMAGs To my knowledge, no PMAGs will work in the FS-2000 to this day without modification. It's brand new so it couldn't be anything crazy like the gas block. 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. I'm pretty sure it's in the 80% Section. But with firearms, there really is seldom a one size fits all option for, well, anything. The follower I wouldn't think should have witness marks on it though. The mag on the left is the metal 10 round mag, the two to the right are Pmags. 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. Posted July 20, 2016 in Shooting Accessories, TFBTV by Alex C. with 210 CommentsTags: I'm the guy at the store with 27 coupons, Magpul, pmag, PMAGs, Tightwad. I thought about a low mag catch (the machining of it) very first, based on your info, but I wanted to know about that mag catch's internal parts first. Privacy Policy. Just checked all of mine, I'm not sure how HC's ended up with a witness mark where it's at. If the solution to the feed problem involves a modification to the upper or lower, I'll test the bolt catch and take another measurement as shown in figure 5. Come join the discussion about optics, modifications, gunsmithing, styles, reviews, accessories, classifieds, and more! 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. It may not display this or other websites correctly. check out the. So, for people who only have AR-15s and only shoot AR-15s, its easy to get tunnel vision and just assume that PMAGs are the greatest, and the end-all, be-all answer for all shooters, while overlooking the needs of other people. The plunger hole was too shallow but even after deepening it, the bolt catch still isn't pushedup high enough because the magazine follower is too low. For me it's almost all gen 2 P mags. Also, PMAGs had trouble fitting in firearms like the British SA-80/L-85, and will not fit in the FN FS-2000 without the user modifying the weapon by removing a component that serves to seal the weapon from dirt and debris. The Fora platform includes forum software by XenForo. That should tell you what's going on. I'll have to get measurements later. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. It's not the bolt catch, itself, obviously. A new one can be sent upon request. Crap! Sounds like the pmag is riding a little high and rubbing the bottom of the carrier a bit. I deepened the hole to 0.480. At the moment just keep posting as usual, the edit feature will become available. I recently assembled this Noveske rifle and bought 3. The tension on the bolt catch by the BCG helps keep the bolt catch firmly engaged over the rear of the follower of the Pmag. AR platform is new to me, and I hope I don't upset anyone here because I am a noob when it comes to ARs. Fix: Empty Pmag gen 3 doesn't catch/lock bolt - YouTube Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. You cannot paste images directly. We have also seen similar malfunctions in a sandy environment using military spec ammo with a dirty, gummed up weapon. Really appreciate your thorough pictures provided, that's an excellent way to provide data on your issues. Hope this helps. None of the 3 15/30 i have worked. The table shows the measurements of several magazines and the left or right cartridge. I am having no problems with Gen 2 or Gen 3 Pmags in a variety of lowers using mil-spec mag and bolt catches, which are also from a variety of suppliers. Fig. Mick 1 month later. Today I had some last shot hold open issues while using 20 round P-mags. Seamac, did you have to modify the black polymer on the mag? It was initially 0.323 deep. His problem is that the front tab of the bolt catch is not engaging on the follower of the PMAG, so the bolt won't hold open on the last round. The main concern is the failure to feed. Just did this, no difference. NEW PRICING: All products have been reduced 10%! Correction to original post: If the solution to the feed problem involves a modification to the upper or lower, Ill test the bolt catch and take another measurement as shown in figure 6 (not figure 5). Its Alex C. with TFBTV. 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. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Problems I have run into in the past include, firstly, that they wont drop free in a lot of firearms. Anyone else having problems with the 15/30. It's a precaution against folks who like to cause trouble immediately after joining up. and might have several still in the packaging. This is one of my pistols. If you experience this issue, make sure your lower is within spec, and your bolt catch is installed correctly and not worn down. Re: Magpul PMag issues. That might give a more consistent measurement between yours and mine. i have thermolds, and usgi mags and the rest of them work perfectly.. Scan this QR code to download the app now. One new winner* is announced every week! That should fix it. 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 PMag Not Locking Bolt Catch : ar15 However, when using the CH to keep the BCG to the rear, the follower can slip past the bolt catch when slammed into the magwell or when jarred or shaken significantly after insertion. Copyright © 308AR.com 2023 Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Here's a pic of the wear on the bolt catch caused by this: Here's the OEM mag (left) compared to the PMAG (right). My external measurement as shown in figure 11 is the top of lower receiver to top of magazine catch hole which is 0.692.

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