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. The BC looks the same so this is a non issue. I deepened the hole to 0.480. There were no ammunition-related issues during the review. Iiiiffffff I owned one of those evil black rifles , I might buy the Hexmag brand when they went on sale for $6.95 ea. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. This will allow for easy removal of the magazine . You are using an out of date browser. 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 read your post twice, I still don't see the malfunction. i have a gen 3 pmag without the window and its kind of frustrating. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. Coil bind on the spring? Pasted as rich text. Scan this QR code to download the app now. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. It was initially 0.323 deep. Also, since the follower rides too high the pmags I used made a dent in the follower from the bolt. That should fix it. 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. I can manually push the bolt catch tab in to raise the catch higher. I used a digital caliper depth gauge as shown in the picture. Mick 1 month later. 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. These same parts are available from other vendors. 11: Top of lower receiver to top of magazine catch hole = 0.692. 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 . 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). Hope this helps. Not a back-breaking amount, mind you, but not insignificant. Elite Aluminum Products although I dont know who made them. 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. Indeed, if could be too low, and we have a HELL of a thread here on that very issue. I deepened the hole to 0.480. 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. 1.4k I dont know what the limit is before you earn the edit privileges. 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. Your previous content has been restored. My solution is to raise the bottom rear edge of the mag well by approximately 1mm to 1.5mm. 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! If you have something major to change a quick PM to a mod will get it fixed for ya. *Must have a registered ARFCOM account to win. 11: Top of lower receiver to top of magazine release hole = 0.692. 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. All Rights Reserved. It may not display this or other websites correctly. The mags cause the bolt catch to rise ever so slightly and drag on the bolt lugs, which results in significant damage over time. 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. 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'll have to get measurements later. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! I'm sure someone here can find that thread on the mag catch heights. [ARCHIVED THREAD] - Bolt Catch issues w/ Pmags + few questions, https://www.triggershims.com/ar_15_shims.html. As weird as this will sound, you need to measure the length of your recoil buffer, and the internal depth of your buffer tube and post it here in addition to the excellent info already provided. 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. Copyright 1996-2023 AR15.COM LLC. Definitely try another couple magazines, including one from another manufacturer. I actually just noticed this issue on my Colt 6920 with Magpul M2 PMAGS. 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). Gonna remove the anodizing, but making omelets requires the breaking of eggs; so. This is not the case with PMAGs in many platforms. 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. Come join the discussion about optics, modifications, gunsmithing, styles, reviews, accessories, classifieds, and more! The plunger and compressed spring are 0.490. The main concern is the failure to feed. View attachment 25288. Try tightening the mag catch an extra turn. If you have an account, sign in now to post with your account. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. We have also seen similar malfunctions in a sandy environment using military spec ammo with a dirty, gummed up weapon. 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. I don't and I didn't . honest. Close the receivers back together and re-engage the rear takedown pin. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt home. Note here that this PMAG will not insert into this civilian version of the HK-416, due to the odd body geometry. Excellent work with the pics and details. It's brand new so it couldn't be anything crazy like the gas block. 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. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. "And here remain with your uncertainty! For me it's almost all gen 2 P mags. Could i just have faulty mags? The Fora platform includes forum software by XenForo. Seamac, did you have to modify the black polymer on the mag? The bolt passes over the cartridge instead of stripping it from the magazine. New production Colt-pattern U.S. GI mags are four to five dollars cheaper than generation three PMAGs. So far so good. 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. The witness make could be from the locking lugs on the bolt, mine don't have it so I can't say for sure. Sounds like the pmag is riding a little high and rubbing the bottom of the carrier a bit. As soon as my wife lifts our household arms embargo, I will have one. Once bolt was locked to the rear or closed, it would engage the catch and seat properly on the "bad" mag. By 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. 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. Let every feeble rumor shake your hearts! Would anyone be willing to measure and report their heights from the top of the lower to the top of a cartridge case head? You must log in or register to reply here. It did. I didn't include that aspectbecause the bolt easily clears the bolt catch (figure 4) so I didn't want to throw in a red herring andconfuse the issue. Morality is nothing more than expressions of people's personal taste/ Right? They are reliable, well-constructed, and produced by a company that has a great reputation. . Sorry, I see the bolt is hitting the follower i could not see that at first.. Not sure if I understand the problem correctly, but I thought the bolt catch is SUPPOSED to ride up on the follower? Powered by Invision Community, Problems with failure to feed AND failure to catch bolt. I will lock back, but requires a strong pull, instead of the gentle slide fully to the rear with aluminum or steel. 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. 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. 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. 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. To my knowledge, no PMAGs will work in the FS-2000 to this day without modification. We STRONGLY encourage all users to ONLY run premium ammunition through their firearm at all times. Switch the Safety selector to 'Safe'. Professional. One new winner* is announced every week! Fig. 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. https://www.cdnnsports.com/catalogsearch/result/?order=relevance&dir=desc&q=Sig+bolt+catch. PMAG Problems Centerfire Rifles - Semiautomatic or Gas Operated 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*. 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 problem is interference between the bottom edge of the rear wall of the mag well and a ridge running horizontally across the PMag spine. Its Alex C. with TFBTV. I suspect yours will be higher than mine. Here's a photo showing the mags. 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. Problems I have run into in the past include, firstly, that they wont drop free in a lot of firearms. The follower I wouldn't think should have witness marks on it though. Pics to follow. Really appreciate your thorough pictures provided, that's an excellent way to provide data on your issues. I'd delete it if I could. TSiWRX. 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. The plunger hole on this 80% lower was supposed to have already been finished. Crap! The ones I used were my friends and I checked the bolt catch before I shot. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Loading magazines at home means more shooting time at the range. Re: Magpul PMag issues. Display as a link instead, This will severly damage your bolt group over time. We are all guilty of doing this, in one way or another. Hey, everyone. 10: Top of lower receiver to top of magazine catch = 0.696, Fig. It's not the bolt catch, itself, obviously. You cannot paste images directly. 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. For a better experience, please enable JavaScript in your browser before proceeding. P-Mag Follower and Bolt Catch Engagement *Issue Resolved! 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". Second Media Corp., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It's a whole lot of details. The bolt partially strips a round but doesnt chamber it and just drags over the top of it. 8: Bolt Carrier to upper receiver = 0.283. 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 i have a gen 3 pmag without the window and its kind of frustrating. It may not display this or other websites correctly. Open the receivers to the maximum limit of the pin capabilities. check out the. Checking mine now! Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. 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. This is not the case with PMAGs in many platforms. Today I had some last shot hold open issues while using 20 round P-mags. The Fix: 1.) Personally I wouldn't shoot it until you've got this issue corrected. 6: Bolt catch fully extended = 0.359, Fig. The table shows the measurements of several magazines and the left or right cartridge. 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 Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. I just don't know why my friend has witness marks on his pmags after use in my Scar 16s. One new winner* is announced every week! I have about 15 Amend 2 mags, but that's out of 20 because 5 of them wouldn't drop out of the mag well by themselves. [ARCHIVED THREAD] - Another P-Mag bolt catch issue. At the moment just keep posting as usual, the edit feature will become available. To clear, get the bolt to move back by removing the floor plate of the magazine, remove the spring and follower followed by the rounds in the magazine and the 2nd round should drop out. Anyone else having problems with the 15/30. Measure the depth of the hole, first. : "Watch what people are cynical about, and one can often discover what they lack.". If your upper and lower receivers are MIL-SPEC the ARMagLock will work. Thanks shooterrex. Depth of the hole? Magpul needs to tweak their mold a bit before they make the claims they do. I thought it was a nonissue with the gen 3. Seen here is a few examples of when a PMAG has to be manually removed: a problem that isnt present most of the time with plain old aluminum magazines. The P-mags always functioned. 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. 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. Please refer to our installation videos and the instructions on your packaging. The bolt catch problem can be solved by drilling the plunger hole deeper but Id first like to solve the feed problem. That one issue, right there, because in the previous pics, that bolt catch isn't sticking up enough to reliably get that bolt face every time. When someone mentions must-have magazines for the AR platform, many shooters immediately think of Pmag Vs Hexmag. Next up is damage to the SCAR. 3: Magazine feed lips height = 0.446, Fig. i have thermolds, and usgi mags and the rest of them work perfectly.. Scan this QR code to download the app now. What measurements do you have on your lower? 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. Either the hole gets deeper, or a couple coils come off the spring, or the tail on the plunger gets shortened. I ordered 10 mags from brownells after I saw they didn't ride the bolt up. *Must have a registered ARFCOM account to win. If someone can answer that, I'd appreciate it. 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. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt 'home'.
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