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. For me it's almost all gen 2 P mags. Next up is damage to the SCAR. Thanks for this HC, I'm going to inspect my Gen 3's to see if mine have the same witness marks. Upload or insert images from URL. I deepened the hole to 0.480. *, 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 P-Mag Follower and Bolt Catch Engagement *Issue Resolved!* 11: Top of lower receiver to top of magazine catch hole = 0.692. Some people used a 9mm bolt catch, others shaved out the bolt catch area on the mag itself. Like CPT stated, it's supposed to raise it some and technically it can only go so far before the BCR bottoms out. Again, though, I would like to recognize that PMAGs are a quality product and Magpul is very receptive to user feedback. I do need to know the correct distance of the top of the mag catch to the top of the lower as in figure 10 by using a depth gauge. 1.4k If you experience this issue, make sure your lower is within spec, and your bolt catch is installed correctly and not worn down. 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. 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. and might have several still in the packaging. Excellent work with the pics and details. I recently assembled this Noveske rifle and bought 3. Pics to follow. https://www.cdnnsports.com/catalogsearch/result/?order=relevance&dir=desc&q=Sig+bolt+catch. A: Some states require the compliance solution be made permanent. Clear editor. 16s and pmag Gen 3 problems!! | FN Herstal Firearms I started construction with the lower at 80%. . 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. Check all your mags, especially PMAGS, but check all mags!! Fig. We STRONGLY encourage all users to ONLY run premium ammunition through their firearm at all times. One new winner* is announced every week! Also don't buy anything from Beavercreek Armory in Hillsboro, Oregon as they screwed me over with this poorly built, out of spec rifle. :??? Repeat for the P-mags and note any difference. 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. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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 BC looks the same so this is a non issue. Similar occurences? 6: Bolt catch fully extended = 0.359, Fig. I read through the threads dealing with this 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). 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. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! 3: Magazine feed lips height = 0.446, Fig. I deepened the hole to 0.480. You can post now and register later. Privacy Policy. Maybe it's raising it too much, but a locked bolt is a locked bolt. Checking mine now! Could i just have faulty mags? Please refer to our installation videos and the instructions on your packaging. 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. When someone mentions must-have magazines for the AR platform, many shooters immediately think of Pmag Vs Hexmag. "And here remain with your uncertainty! Elite Aluminum Products although I dont know who made them. Re: Magpul PMag issues. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. 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. One new winner* is announced every week! Indeed, if could be too low, and we have a HELL of a thread here on that very issue. Pasted as rich text. Maybe after Magpul completes their move they'll address some of their mold issues, 'til then it's best to check. I don't and I didn't . honest. I actually just noticed this issue on my Colt 6920 with Magpul M2 PMAGS. If you have something major to change a quick PM to a mod will get it fixed for ya. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. I will lock back, but requires a strong pull, instead of the gentle slide fully to the rear with aluminum or steel. Lastly, not only are PMAGs more expensive than the alternative, but also heavier. 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). The mags cause the bolt catch to rise ever so slightly and drag on the bolt lugs, which results in significant damage over time. Not up on the 80% stuff myself but we have a thread with lots of different brand bolt catches and the dimensions that may help on that end, please add to it if you have something not listed there. JWardJune 15, 2020 in Building a .308AR. This will allow for easy removal of the magazine . Does your caliper also have a depth gauge that can get the internal depth to the mag catch as in figure 10? Your previous content has been restored. Gonna remove the anodizing, but making omelets requires the breaking of eggs; so. The Fix: 1.) The ones I used were my friends and I checked the bolt catch before I shot. 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. PMAG feeding problem, jamming on chamber face It's brand new so it couldn't be anything crazy like the gas block. Either the hole gets deeper, or a couple coils come off the spring, or the tail on the plunger gets shortened. So far so good. I'll try and grab my camera. Also the follower rides the bolt catch up A LOT. 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 main concern is the failure to feed. Special thanks to Ventura Munitions for helping us out with the cost of ammo, and a special thank you to you all for watching. You'll need to clay the upper, just like you'd do if you were checking an engine for piston-to-valve clearance. 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 solution will meet some states permanence requirements. Could the magazine be too low? I don't know if this is an indication of another problem being that the bolt catch is too far left. I think I may just shoot it a few mags and see what happens.. The gun will feed rounds from the PMAGs no problem. A new one can be sent upon request. JavaScript is disabled. Morality is nothing more than expressions of people's personal taste/ Right? None of the 3 15/30 i have worked. Also, we'll be happy to correct or delete anything if you point it out to us in the meantime. Has anyone seen this? 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. The mags cause the bolt catch to rise ever . For a better experience, please enable JavaScript in your browser before proceeding. 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*. Note here that this PMAG will not insert into this civilian version of the HK-416, due to the odd body geometry. 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. This will severly damage your bolt group over time. How is it though that my. UPDATE: after tinkering with it, Ive noticed it only happens on 30 round mags. Can anyone offer insight to the cause of or solution to these problems? 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. 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. Ar10 bolt jamming up on PMag/mag release | Northwest Firearms I'm sure someone here can find that thread on the mag catch heights. PSA PA-10 Magazines, quick question. | Sniper's Hide Forum Bolt Catch issues w/ Pmags + few questions - AR15.COM Seamac, did you have to modify the black polymer on the mag? I can manually push the catch tab in to raise the catch higher. Here's a photo showing the mags. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. This is not the case with PMAGs in many platforms. 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. 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. Copyright 1996-2023 AR15.COM LLC. Hey, everyone. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. The follower I wouldn't think should have witness marks on it though. 8: Bolt Carrier to upper receiver = 0.283. (not my lower, but my exact problem!) Not trying to be a dick, but can you summarize in one sentence what the rifle is NOT doing? These two pics right here, and the height difference. TSiWRX. Its Alex C. with TFBTV. Magpul PMag issues We have heard reports these malfunctions often happened with Wolf, Tula, and Brown Bear ammo. 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? If you have an account, sign in now to post with your account. Let every feeble rumor shake your hearts! All Rights Reserved. Before that would be a solution - you need tocheck how much further into the upper receiver that your magazine will go. Always use the firearm and AR MAGLOCK products as designed, engineered and intended for use. The max difference is 0.030".The real problem is where the mag catch hole is in the lower. *Must have a registered ARFCOM account to win. 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. This is one of my pistols. Fig. Is it the length of the plunger? . Why I Don't Use PMAGs 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". 4: Clearance to bolt catch is adequate when bolt is fully retracted, Fig. The issue is with bolt lock back. The bolt catch rides up but not on the black polymer part of the mag, but the follower. 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). What measurements do you have on your lower? I like the idea that I can accomplish a speedy reload by pressing a button and kicking a magazine out. Fig. The plunger and compressed spring are 0.490. The problem is pretty simple, the magazine's follower is failing to raise the bolt catch. Close the receivers back together and re-engage the rear takedown pin. These same parts are available from other vendors. New production Colt-pattern U.S. GI mags are four to five dollars cheaper than generation three PMAGs. This is. I wish I could edit the original post to correct this. Thanks for the reply. 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? 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 . I just checked and my BM lower does the same. Problems with failure to feed AND failure to catch bolt It was initially 0.323 deep. PMAGs are pretty notorious for not wanting to work in various platforms, including guns like the HK-416 and M27-IAR. 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. By Magpul Pmag Bolt Hold Open Problem - YouTube Think it could be magazine springs? The P-mags always functioned. The witness make could be from the locking lugs on the bolt, mine don't have it so I can't say for sure. You are using an out of date browser. 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. I suspect yours will be higher than mine. I dont have another LR-308 with which to compare my measurements so I dont know which dimensions are problematic. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. How To Fix AR-15 Bolt Catch Lock Failure for PMAG's
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