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pmag bolt catch problem

    pmag bolt catch problem

    I have both just to keep ammo separated. JavaScript is disabled. 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. Hey, everyone. I can manually push the catch tab in to raise the catch higher. and our A: Some states require the compliance solution be made permanent. Clear editor. It was initially 0.323 deep. The Fix: 1.) I read your post twice, I still don't see the malfunction. 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. 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. So, I marked it and I'm gonna keep running it through to see if it happens anymore. Copyright 1996-2023 AR15.COM LLC. UPDATE: After seeing these pictures, I checked my factory mag. I deepened the hole to 0.480. You must log in or register to reply here. "And here remain with your uncertainty! They are reliable, well-constructed, and produced by a company that has a great reputation. Coil bind on the spring? UPDATE: after tinkering with it, Ive noticed it only happens on 30 round mags. The ones I used were my friends and I checked the bolt catch before I shot. 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. This is one of my pistols. Your previous content has been restored. For me it's almost all gen 2 P mags. 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. I suspect yours will be higher than mine. My Colt LE6920 bolt is not locking back when the last round is fired nor when I insert an empty magpul pmag magazine. Can anyone offer insight to the cause of or solution to these problems? I'm sure someone here can find that thread on the mag catch heights. The plunger and compressed spring are 0.490. TSiWRX. Any use of this content without express written consent is prohibited. Hexmag for 260rem and pmag for 6.5creed. 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 . We have also seen similar malfunctions in a sandy environment using military spec ammo with a dirty, gummed up weapon. . The upper, lower, and jig are from Daytona Tactical d.b.a. Note here that this PMAG will not insert into this civilian version of the HK-416, due to the odd body geometry. 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". 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. The P-mags always functioned. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. *, 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 The Fora platform includes forum software by XenForo. JavaScript is disabled. :??? The gun will feed rounds from the PMAGs no problem. 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 forward in the mag body, and the end of the catch tab is not lifted upwards to active the catch. 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. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. PMAGs are pretty notorious for not wanting to work in various platforms, including guns like the HK-416 and M27-IAR. 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. I used a digital caliper depth gauge as shown in the picture. Sounds like the pmag is riding a little high and rubbing the bottom of the carrier a bit. Pasted as rich text. I'll try and grab my camera. 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. Always use the firearm and AR MAGLOCK products as designed, engineered and intended for use. 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. If your upper and lower receivers are MIL-SPEC the ARMagLock will work. 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. 1.4k I think I may just shoot it a few mags and see what happens.. [ARCHIVED THREAD] - Another P-Mag bolt catch issue. 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). 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. If so, it would cause both symptoms. The bolt catch problem can be solved by drilling the plunger hole deeper but Id first like to solve the feed problem. 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. 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. Mick 1 month later. I deepened the hole to 0.480. 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. Magpul needs to tweak their mold a bit before they make the claims they do. The issue is with bolt lock back. If so, it might be worth trying another batch of pmags in case it's just a mold variation. First and foremost, I will readily acknowledge that PMAGs are a great magazine. That might give a more consistent measurement between yours and mine. 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. Please refer to our installation videos and the instructions on your packaging. The problem is pretty simple, the magazine's follower is failing to raise the bolt catch. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt home. This is not the case with PMAGs in many platforms. A new one can be sent upon request. Is it the length of the plunger? Once bolt was locked to the rear or closed, it would engage the catch and seat properly on the "bad" mag. Personally I wouldn't shoot it until you've got this issue corrected. Note the different rear opening. i have thermolds, and usgi mags and the rest of them work perfectly.. Scan this QR code to download the app now. 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. Press the AR MAGLOCK magazine release button. 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. Excellent work with the pics and details. I ordered 10 mags from brownells after I saw they didn't ride the bolt up. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. I deepened the hole to 0.480. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. We STRONGLY encourage all users to always use the new PMAG magazine or some other 10 round magazine solution with a removable floor plate. My external measurement as shown in figure 11 is the top of lower receiver to top of magazine catch hole which is 0.692. You are using an out of date browser. Professional. No need to answer that last question. None of the 3 15/30 i have worked. 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. Definitely try another couple magazines, including one from another manufacturer. Let every feeble rumor shake your hearts! It knows when youre cheating..like Santa. If someone can answer that, I'd appreciate it. It's a whole lot of details. Then collapse that spring ON the plunger, to coil bind, and measure the OAL of both (with spring in coil bind). 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. Fig. I dont have another LR-308 with which to compare my measurements so I dont know which dimensions are problematic. The bolt passes over the cartridge instead of stripping it from the magazine. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Fig. Mar 3, 2022. Seamac, did you have to modify the black polymer on the mag? 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. 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. Operation of an AR-15 without the receivers / action fully closed may result in serious injuries or death. 10: Top of lower receiver to top of magazine release = 0.696, Fig. Here's a photo showing the mags. They are not as likely to happen with premium ammo yet the chance is still 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). 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! Could the magazine be too low? 6: Bolt catch fully extended = 0.359, Fig. The edit feature will become available to you with just a few more posts on the forum. After depletion of your 10 round magazine, you must hit the bolt catch release to bring the bolt 'home'. I read through the threads dealing with this issue. 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!". 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). Try tightening the mag catch an extra turn. Pmags have worked fine in the past. 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. 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. Its best to identify these two common issues with your rifle, before attempting to diagnose problems with your magazines. Similar occurences? 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. Fig. *Must have a registered ARFCOM account to win. Operation of any AR MAGLOCK products outside the standard method of operation or its original intended use may cause non-compliance to laws / regulations, and injury or death. Also don't buy anything from Beavercreek Armory in Hillsboro, Oregon as they screwed me over with this poorly built, out of spec rifle. 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. We have heard reports these malfunctions often happened with Wolf, Tula, and Brown Bear ammo. As soon as my wife lifts our household arms embargo, I will have one. Indeed, if could be too low, and we have a HELL of a thread here on that very issue. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. 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". The bolt catch problem can be solved by drilling the plunger hole deeper but I'd first like to solve the feed problem. Measure the depth of the hole, first. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Also the follower rides the bolt catch up A LOT. 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. You can post now and register later. I like the idea that I can accomplish a speedy reload by pressing a button and kicking a magazine out. The metal Mag that came with my Stag worked fine however. It was initially 0.323 deep. [ARCHIVED THREAD] - Bolt Catch issues w/ Pmags + few questions, https://www.triggershims.com/ar_15_shims.html. 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. Mine seem to be fine after trimming of course. The follower I wouldn't think should have witness marks on it though. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I just checked and my BM lower does the same. 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. One new winner* is announced every week! This is not the case with PMAGs in many platforms. These same parts are available from other vendors. The mag on the left is the metal 10 round mag, the two to the right are Pmags. Your link has been automatically embedded. Would anyone be willing to measure and report their heights from the top of the lower to the top of a cartridge case head? I started construction with the lower at 80%. 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. i have a gen 3 pmag without the window and its kind of frustrating. 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. My solution is to raise the bottom rear edge of the mag well by approximately 1mm to 1.5mm. 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. 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. It's not the bolt catch, itself, obviously. Come join the discussion about optics, modifications, gunsmithing, styles, reviews, accessories, classifieds, and more! 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. What's stopping your bolt catch travel, when you have that plunger and spring in there? 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. Why not just ditch the PMags? AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Very carefully and pay attention to how the bolt catch actually works, if you did you should figured it out almost immediately. How can I make my rifle more reliable with PMags? Problem: 30 round Pmag follower doesn't catch on the front lip of the bolt catch. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. IMHO, I would get a USGI / high / known quality bolt catch and try one of those. I can manually push the bolt catch tab in to raise the catch higher. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Anyone else having problems with the 15/30. Depth of the hole? Just checked all of mine, I'm not sure how HC's ended up with a witness mark where it's at. This solution will meet some states permanence requirements. The bolt partially strips a round but doesnt chamber it and just drags over the top of it. 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. Really appreciate your thorough pictures provided, that's an excellent way to provide data on your issues. 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). Using PMAGs can actually do irreparable damage to an FN SCAR rifle. All Rights Reserved. After installation of the ARMagLock the button is. You are using an out of date browser. 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 7: Bolt catch fully extended, plunger removed = 0.443, Fig. You'll need to clay the upper, just like you'd do if you were checking an engine for piston-to-valve clearance. 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. 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. Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. NEW PRICING: All products have been reduced 10%! Gonna remove the anodizing, but making omelets requires the breaking of eggs; so. Replace the empty magazine with a new 10 round magazine and let it click into place. Either the hole gets deeper, or a couple coils come off the spring, or the tail on the plunger gets shortened. The mags cause the bolt catch to rise ever so slightly and drag on the bolt lugs, which results in significant damage over time. 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 witness make could be from the locking lugs on the bolt, mine don't have it so I can't say for sure. Paste as plain text instead, For a while you only had so long to make the edit and then never again. What corresponding dimensions do you have? I recently assembled this Noveske rifle and bought 3. Try manually locking it back a dozen or so times then checking for any wear streaks on the top of the magazine feed lips. The plunger and compressed spring are 0.490. That should fix 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. Again, though, I would like to recognize that PMAGs are a quality product and Magpul is very receptive to user feedback. #5. There were no ammunition-related issues during the review. Crap! 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. Second Media Corp., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Using PMAGs can actually do irreparable damage to an FN SCAR rifle. Checking mine now! Because of the cost difference, weight, compatibility issues, and not dropping free in many platforms, Ill stick with what I know works. 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). For a better experience, please enable JavaScript in your browser before proceeding. Of course, this is just my opinion, based on my personal experiences, and your mileage may vary. Again, kids running with scissors did this to us. I don't and I didn't . honest. Thanks for the reply. Alex is a Senior Writer for The Firearm Blog and Director of TFBTV. 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. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. So far so good. 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. How do I make the install permanent for use in states such as. Re: Magpul PMag issues. .661 from top of receiver to top of mag catch inside magwell. Continue until the upper lip is flush with the upper receiver when closed. 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 liken this to a person who lives in an urban area with an office job, assuming that nobody needs anything more than a Toyota Camry, while overlooking the fact that some people need things such as towing capacity, off-road capability, or more seats for a larger family. They all functioned fine. I was curious about how other magazines behaved in the lower so I measured them to simply verify reasonable consistency. edit: i just got them. 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. We are all guilty of doing this, in one way or another. (not my lower, but my exact problem!) Powered by Invision Community, Problems with failure to feed AND failure to catch bolt. The bolt can still be removed by grinding but will no longer be usable. It may not display this or other websites correctly. Well, there are several reasons for this. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! 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. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. By It's brand new so it couldn't be anything crazy like the gas block. The mags cause the bolt catch to rise ever . 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. 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. If you experience this issue, make sure your lower is within spec, and your bolt catch is installed correctly and not worn down. This is. 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.

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