Pasted as rich text. Your link has been automatically embedded. New production Colt-pattern U.S. GI mags are four to five dollars cheaper than generation three PMAGs. The bolt catch problem can be solved by drilling the plunger hole deeper but Id first like to solve the feed problem. That should tell you what's going on. https://www.cdnnsports.com/catalogsearch/result/?order=relevance&dir=desc&q=Sig+bolt+catch. The plunger and compressed spring are 0.490. We STRONGLY encourage all users to always use the new PMAG magazine or some other 10 round magazine solution with a removable floor plate. Why not just ditch the PMags? This is. For me it's almost all gen 2 P mags. If so, it might be worth trying another batch of pmags in case it's just a mold variation. 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. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! 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. 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. 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. Any use of this content without express written consent is prohibited. I wish I could edit the original post to correct this. 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". It was initially 0.323 deep. Does your caliper also have a depth gauge that can get the internal depth to the mag catch as in figure 10? 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. 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. Your previous content has been restored. Hey, everyone. 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. No need to answer that last question. Mine seem to be fine after trimming of course. Gonna remove the anodizing, but making omelets requires the breaking of eggs; so. Ar10 bolt jamming up on PMag/mag release | Northwest Firearms Checking mine now! Here's a photo showing the mags. The plunger and compressed spring are 0.490. I like the idea that I can accomplish a speedy reload by pressing a button and kicking a magazine out. Mick 1 month later. JavaScript is disabled. 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. The metal Mag that came with my Stag worked fine however. My Colt LE6920 bolt is not locking back when the last round is fired nor when I insert an empty magpul pmag magazine. Pmag VS Hexmag Magpul PMag issues Very carefully and pay attention to how the bolt catch actually works, if you did you should figured it out almost immediately. A forum community dedicated to FN Herstal firearm owners and enthusiasts. I read through the threads dealing with this issue. Depth of the hole? 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. I dont readily know of a solution to the feed problem but I dont want to alter magazines to compensate for a receiver flaw. I was curious about how other magazines behaved in the lower so I measured them to simply verify reasonable consistency. As soon as my wife lifts our household arms embargo, I will have one. The main concern is the failure to feed. Crap! I'm sure someone here can find that thread on the mag catch heights. This is not the case with PMAGs in many platforms. I recently assembled this Noveske rifle and bought 3. At the moment just keep posting as usual, the edit feature will become available. 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. 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'm looking forward to hearing some comments on this. Bolt Catch issues w/ Pmags + Advice Needed - AR15.COM 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*. But with firearms, there really is seldom a one size fits all option for, well, anything. Before that would be a solution - you need tocheck how much further into the upper receiver that your magazine will go. If that's what the bolt catch is suppossed to look like then my mags are a lil out of spec when inserted into the lower. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Also the follower rides the bolt catch up A LOT. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 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. 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? 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. The table shows the measurements of several magazines and the left or right cartridge. Could the magazine be too low? Also, we'll be happy to correct or delete anything if you point it out to us in the meantime. The upper, lower, and jig are from Daytona Tactical d.b.a. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt home. P-Mag Follower and Bolt Catch Engagement *Issue Resolved! I sanded the top rib along the back wall of the mag near the feed and the feed itself and problem seems to have resolved. It's not the bolt catch, itself, obviously. They all functioned fine. I can manually push the catch tab in to raise the catch higher. Can anyone offer insight to the cause of or solution to these problems? The plunger hole on this 80% lower was supposed to have already been finished. 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. Just did this, no difference. magpul pmag milspec bolt catch problem : r/ar15 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 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 Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Its Alex C. with TFBTV. If someone can answer that, I'd appreciate it. Display as a link instead, This will allow for easy removal of the magazine . Problem: 30 round Pmag follower doesn't catch on the front lip of the bolt catch. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. All Rights Reserved. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. A new one can be sent upon request. My solution is to raise the bottom rear edge of the mag well by approximately 1mm to 1.5mm. 1.4k It's a precaution against folks who like to cause trouble immediately after joining up. Problems with failure to feed AND failure to catch bolt This clearance is partially determined by the use of aLuth-AR .308 rifle buffer tube, spring, and weight [https://www.luth-ar.com/product/buffer-tube-spring-assembly-kit-308/]. 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. If you could post a pic of that comparison, it would be helpful. Some rifles are just finicky. Open the receivers to the maximum limit of the pin capabilities. 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. We have also seen similar malfunctions in a sandy environment using military spec ammo with a dirty, gummed up weapon. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Pics to follow. .661 from top of receiver to top of mag catch inside magwell. . I could not find it for a few days so I checked it. The bolt partially strips a round but doesnt chamber it and just drags over the top of it. Copyright 1996-2023 AR15.COM LLC. Note the different rear opening. Using PMAGs can actually do irreparable damage to an FN SCAR rifle. If so, it would cause both symptoms. 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 Seamac, did you have to modify the black polymer on the mag? 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. None of the 3 15/30 i have worked. Fig. For a while you only had so long to make the edit and then never again. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. PMAG "bolt catch interference" Issue with LMT MWS PMAG bolt lockback fix | Springfield XD Forum The BC looks the same so this is a non issue. I dont have another LR-308 with which to compare my measurements so I dont know which dimensions are problematic. You cannot paste images directly. How is it though that my. Today I had some last shot hold open issues while using 20 round P-mags. You are using an out of date browser. 4: Clearance to bolt catch is adequate when bolt is fully retracted, Fig. Clear editor. The ones I used were my friends and I checked the bolt catch before I shot. 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. 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. The plunger and compressed spring are 0.490. I included a pic of the mag fully inserted, then a mag with the follower pushed down to the point of where the bolt catch stays flat. AR10 bolt catch issues : r/AR10 Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. 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. Any use of this content without express written consent is prohibited. 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). TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! Thanks for the reply. 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. 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. These same parts are available from other vendors. What measurements do you have on your lower? and our Scan this QR code to download the app now. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. TFB Review: Over 1,000 Rounds With The Springfield Hellion 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. TSiWRX. Thanks for this HC, I'm going to inspect my Gen 3's to see if mine have the same witness marks. We are all guilty of doing this, in one way or another. How do I make the install permanent for use in states such as. I thought it was a nonissue with the gen 3. I actually just noticed this issue on my Colt 6920 with Magpul M2 PMAGS. Similar occurences? For a better experience, please enable JavaScript in your browser before proceeding. Cookie Notice Re: Magpul PMag issues. Sounds like the pmag is riding a little high and rubbing the bottom of the carrier a bit. PMAG Problems Centerfire Rifles - Semiautomatic or Gas Operated A: Some states require the compliance solution be made permanent. Measure the depth of the hole, first. 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. 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. Not a back-breaking amount, mind you, but not insignificant. 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. 11: Top of lower receiver to top of magazine release hole = 0.692. 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. 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. Second Media Corp., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Let every feeble rumor shake your hearts! Copyright © 308AR.com 2023 Pmag Problem | Northeastshooters.com Forums After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt 'home'. [ARCHIVED THREAD] - Another P-Mag bolt catch issue. The bolt catch rides up but not on the black polymer part of the mag, but the follower. There were no ammunition-related issues during the review. Then collapse that spring ON the plunger, to coil bind, and measure the OAL of both (with spring in coil bind).
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