For a while you only had so long to make the edit and then never again. Also, since the follower rides too high the pmags I used made a dent in the follower from the bolt. 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 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. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Mick 1 month later. The table shows the measurements of several magazines and the left or right cartridge. How is it though that my. For me I had to shave off small pieces of the mag to make the bolt catch itself latch. 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 . Suggestions? 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. Note the different rear opening. Thanks for this HC, I'm going to inspect my Gen 3's to see if mine have the same witness marks. When someone mentions must-have magazines for the AR platform, many shooters immediately think of Pmag Vs Hexmag. But with firearms, there really is seldom a one size fits all option for, well, anything. The edit feature will become available to you with just a few more posts on the forum. Because of the cost difference, weight, compatibility issues, and not dropping free in many platforms, Ill stick with what I know works. 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!". PMAGs are pretty notorious for not wanting to work in various platforms, including guns like the HK-416 and M27-IAR. Continue until the upper lip is flush with the upper receiver when closed. I dont readily know of a solution to the feed problem but I dont want to alter magazines to compensate for a receiver flaw. Could the magazine be too low? There were no ammunition-related issues during the review. 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). I will lock back, but requires a strong pull, instead of the gentle slide fully to the rear with aluminum or steel. Talyn said: Pmag VS Hexmag. If you have an account, sign in now to post with your account. You cannot paste images directly. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! We STRONGLY encourage all users to always use the new PMAG magazine or some other 10 round magazine solution with a removable floor plate. It may not display this or other websites correctly. Crap! All Rights Reserved. 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 5. What changed? The max difference is 0.030".The real problem is where the mag catch hole is in the lower. IMHO, I would get a USGI / high / known quality bolt catch and try one of those. One new winner* is announced every week! Problem: 30 round Pmag follower doesn't catch on the front lip of the bolt catch. Copyright 1996-2023 AR15.COM LLC. How do I make the install permanent for use in states such as. 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. Alex is a Senior Writer for The Firearm Blog and Director of TFBTV. i have a gen 3 pmag without the window and its kind of frustrating. Your enemies, with nodding of their plumes, fan you into despair! TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! Morality is nothing more than expressions of people's personal taste/ Right? Its best to identify these two common issues with your rifle, before attempting to diagnose problems with your magazines. edit: i just got them. This solution will meet some states permanence requirements. Well, there are several reasons for this. 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? I used a digital caliper depth gauge as shown in the picture. https://www.cdnnsports.com/catalogsearch/result/?order=relevance&dir=desc&q=Sig+bolt+catch. The plunger hole on this 80% lower was supposed to have already been finished. I dont know what the limit is before you earn the edit privileges. I can manually push the catch tab in to raise the catch higher. The ones I used were my friends and I checked the bolt catch before I shot. Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. Always use the firearm and AR MAGLOCK products as designed, engineered and intended for use. Can anyone offer insight to the cause of or solution to these problems? 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. For a better experience, please enable JavaScript in your browser before proceeding. I thought it was a nonissue with the gen 3. Like CPT stated, it's supposed to raise it some and technically it can only go so far before the BCR bottoms out. It's brand new so it couldn't be anything crazy like the gas block. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Some rifles are just finicky. 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. 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. A friend with a lower that started at 80% also had the same problem as I do and fixed his by shifting his mag catch up 0.050". 11: Top of lower receiver to top of magazine catch hole = 0.692. Maybe after Magpul completes their move they'll address some of their mold issues, 'til then it's best to check. Excellent work with the pics and details. Is it the length of the plunger? 11: Top of lower receiver to top of magazine release hole = 0.692. Fig. Additionally, unsafe and unintended methods of operation of the FIREARM may also cause non-compliance. For a better experience, please enable JavaScript in your browser before proceeding. 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. :??? They are reliable, well-constructed, and produced by a company that has a great reputation. I could not find it for a few days so I checked it. Some people used a 9mm bolt catch, others shaved out the bolt catch area on the mag itself. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. [ARCHIVED THREAD] - Bolt Catch issues w/ Pmags + few questions, https://www.triggershims.com/ar_15_shims.html. Has anyone seen this? I'm looking forward to hearing some comments on this. P-Mag Follower and Bolt Catch Engagement *Issue Resolved! If someone can answer that, I'd appreciate it. 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. 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 I don't and I didn't . honest. (not my lower, but my exact problem!) My Colt LE6920 bolt is not locking back when the last round is fired nor when I insert an empty magpul pmag magazine. 6: Bolt catch fully extended = 0.359, Fig. Why not just ditch the PMags? Either the hole gets deeper, or a couple coils come off the spring, or the tail on the plunger gets shortened. If so, it might be worth trying another batch of pmags in case it's just a mold variation. It may not display this or other websites correctly. By I'll have to get measurements later. The metal Mag that came with my Stag worked fine however. 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. 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. 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. 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. Magpul needs to tweak their mold a bit before they make the claims they do. 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. 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. Seen here is a few examples of when a PMAG has to be manually removed: a problem that isn't present most of the time with plain old aluminum magazines. I started construction with the lower at 80%. Clear editor. First and foremost, I will readily acknowledge that PMAGs are a great magazine. .661 from top of receiver to top of mag catch inside magwell. Try manually locking it back a dozen or so times then checking for any wear streaks on the top of the magazine feed lips. I just checked and my BM lower does the same. Any use of this content without express written consent is prohibited. Pmags have worked fine in the past. We have also seen similar malfunctions in a sandy environment using military spec ammo with a dirty, gummed up weapon. PMAG Problems Centerfire Rifles - Semiautomatic or Gas Operated I'm sure someone here can find that thread on the mag catch heights. None of the 3 15/30 i have worked. 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. So far so good. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. What measurements do you have on your lower? I ordered 10 mags from brownells after I saw they didn't ride the bolt up. Loading magazines at home means more shooting time at the range. I think I may just shoot it a few mags and see what happens.. Let every feeble rumor shake your hearts! JavaScript is disabled. You can post now and register later. Maybe it's raising it too much, but a locked bolt is a locked bolt. 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). A new one can be sent upon request. My external measurement as shown in figure 11 is the top of lower receiver to top of magazine catch hole which is 0.692. Your link has been automatically embedded. Before that would be a solution - you need tocheck how much further into the upper receiver that your magazine will go. : "Watch what people are cynical about, and one can often discover what they lack.". His mags didn't ride the bolt catch up so we tried them out. The plunger and compressed spring are 0.490. 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 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. 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. This is one of my pistols. Again, though, I would like to recognize that PMAGs are a quality product and Magpul is very receptive to user feedback. JavaScript is disabled. I actually just noticed this issue on my Colt 6920 with Magpul M2 PMAGS. To my knowledge, no PMAGs will work in the FS-2000 to this day without modification. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Mag still wobbles the same and the error still remains. The bolt catch rides up but not on the black polymer part of the mag, but the follower. I'm pretty sure it's in the 80% Section. *Must have a registered ARFCOM account to win. 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. Pasted as rich text. 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. We are all guilty of doing this, in one way or another. While the weight difference may not seem like much to a civilian shooter who packs up his shiny, clean competition rifle into his Pelican case and totes it to and from the range in the family truckster, you hear about things like guys cutting toothbrushes in half to save weight in the military. The bolt can still be removed by grinding but will no longer be usable. *Must have a registered ARFCOM account to win. This will allow for easy removal of the magazine . I wish I could edit the original post to correct this. 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 . The bolt catch problem can be solved by drilling the plunger hole deeper but I'd first like to solve the feed problem. View attachment 25288. What corresponding dimensions do you have? 10: Top of lower receiver to top of magazine catch = 0.696, Fig. Definitely try another couple magazines, including one from another manufacturer. The bolt catch problem can be solved by drilling the plunger hole deeper but Id first like to solve the feed problem. 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.

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