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If that fails tap the Handle. Which in turn fires the bullet. If the bolt carrier from the problem rifle works fine in the non-problem rifle, but the bolt carrier from the non-problem rifle binds in the problem rifle, we've eliminated the bolt carrier as the problem. 6.5 Grendel Bolt Carrier Group . Look for the shiny spots in the upper caused by the bolt carrier. I like to see the BCG slide into battery and lock by it's own weight when released into the unistalled upper from anything more than a 45* muzzledown angle. I did not see any problem with the lower. At this point in my life, I had thought that I had learned to always inspect new equipment before trying to use it. And when this happened to me it ruined my day of shooting and did know how to fix the issue until later when I got back from shooting and looked up solutions on the internet and it took me many searches to find this method so I figured I would pay it forward and upload a video of my own to help other ar15 owners in case they need to ever perform this technique and get their rifle back to working order. Sounds like your buffer tube may not be threaded in far enough to keep the retainer pin from popping up, causing it to catch the bolt carrier when it goes past it. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. The bolt should be centered properly. 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. If you didn't spray it down with brake cleaner or something prior to snapping the photo, that thing is beyond dry looking to me. Just get one of the Brownells 308AR Bolt Carrier Groups, if you're stuck. I know it seems a bit harsh, but it works, it's what the military has been doing for years. Those pictures don't help. ATTN: Here is the link to a new higher quality and more informative video I made showing this technique and explaining what I think causes it, and how to keep the issue from happening again.https://youtu.be/S_wLVeBOJgII show how to use the mortar technique and simulate how my AR-15 bcg locked up with a round chambered and a bolt carrier group that wouldn't budge. The Sig Sauer P320: the multi caliber,. The cause could be the result of one or more of the following: Excess accumulation of dirt or fouling in and around the bolt and . Now press the forward assist to make sure the bolt is locked up. Its always nice to exclude thing as being the problem . I also oil liberally for the first 500 or so rounds. This is odd. Charging Handles Combos. Lube those too. I know, dumb as he.. and not paying attention. Ejects the spent cartridge after firing. Than, lift the rifle up about 1 foot or so and bring it onto the ground with considerable force. $290.99 On sale: $228.95 In Stock. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. The charging handle moves back and forth easily now. Hey All, New to the AK world so please excuse the lack of knowledge. Shop for Rifle Bolts & Bolt Carrier Groups at Brownells! You are correct sir! This is often too short. I read the title (What can cause a bolt to get stuck?) It is surprising sometimes how stiff a new BCG can be. 227-GTBCG | Guntec. You will be able to leave a comment after signing in, AR15Armory.com Press J to jump to the feed. Sale. When I manually pull the carrier all the way back (past the trigger "friction"), it sounds a . I can pull the entire bolt carrier group back into the tube but it will seize. When the thickness of five stacked quarters .345 is added to the length of the Colt 9mm buffer we conclude our 9mm buffer needs to be approximately 3.645 long! The bolt seats very early in the cycle. BCA's Bolt carrier groups are MPI inspected. Here is a video on how to do it. Perhaps it's the zoomed pic but that bcg looks like crap. About Women's Health Newsletter Customer Care Advertise Media Kit Other Hearst Subscriptions Subscribe Give a Gift. Insert the Cam Pin through the Bolt Carrier opening and into the Bolt so that the flat bar on top of the Cam Pin is inline with the Bolt Carrier. I was able to separate the upper from the lower. $154.99 On sale: $144.14 In Stock. mortaring your rifle fixes this type 4 malfunction that occurs in the AR15 weapon platform. November 14, 2010 in The Beginners AR15 Armory. You have significant carrier movement prior to any unlocking/bolt rotation. I always disassemble new BCG's, clean and over oil, then sit in front of the tv for an hour or so and manually rotate, push and pull on the bolt in the carrier over and over until the movement is smooth and without any rough spots. How did you install the barrel? With both pins out, I can separate the halves about half an inch, but the rear takedown lug? We carry Aero Precision, Toolcraft, Fail Zero and Spike's Tactical BCGs with Nickel Boron, Black Nitride, Ionbond DLC, Chrome/Magnesium Phosphate and Titanium Nitride-Gold finishes with M16 . BCG stuck No, when the BCG moves rearward, the bolt is held by the receiver extension. *Must have a registered ARFCOM account to win. Re: help!!!! Take a pic of the rear of the bolt lugs. If the problem still occurs in the problem rifle, then those two components are not contributing to the problem and the issue is the alignment of the upper to the lower receiver extension. Or, You might have a burst shell casing that's hung up on the Bolt. Two Reasons a 9MM AR Bolt Catch Breaks. As far as I know this only applies to 9MM AR rifles, SBRs, carbines and pistols who use a 9MM specific AR bolt catch. Pushed on it and heard it click. When the bullet passes by the gas port , the bur shaves a little off the bullet and the gasses send it down the gas tube back into the BCG . Put your pins back in and smack the buttstock on the ground. TLDR: Your rifles are fine. You may have to lightly push on the FA, but you shouldn't have to jam on it to get into go into battery. If all is well, I'd remove bcg 3-4 times, reinsert, etc. 26 items . Here is a video on how to do it. . I have a Spike's NiB BCG that is well worn (second set of gas rings, extractor spring, o ring, and insert) and I am not meticulous when cleaning. Reason One - A 9MM AR Bolt is shorter than a milspec AR-15 Bolt Carrier Group. Check JP Enterprise but I'm thinking colt bcg have a proprietary cut to them?? You are using an out of date browser. Because it's a nickel boron bcg, I was hoping this would be the magic solution that prevented me from having to lube anything. October 22, 2019 2:57 am Reply Gary. (with a live round in the chamberLOL. and responded with an answer, because my bolt (well entire carrier really) did in fact get stuck in the open position due to the . This unfortunately allows the 9MM bolt to travel further down the buffer tube than necessary. [ARCHIVED THREAD] - What can cause a bolt to get stuck. $157.49. Odin Works AR-15 6.5 Grendel Black Nitride Type 2 Bolt Carrier Group Usually Ships in 24 Hours MSRP: $149.00 . Try this: swap BCGs, not uppers. It is not stuck in battery. You might want to pick up a cheap DS arms BCG just to have on hand. My AR's are wet inside. If you recoil spring feels week replace it with a Wolff XP or from another reputable manufacturer. Take it apart and clean it real good then oil it back up and cycle it several times. Or did you ever take the BCG apart? While pulling the charging handle, drive the buttstock into the ground being careful not to bend the charging handle. I do not run "wet" and rarely clean with less than 500 rounds fired since the last clean/lube. Use common sense. No wonder it is locking up. Allowing the firing pin to strike the primer on the chambered round. I've had the same situation happen to me once before and it turned out that the round had a slight bulge around it's base. Toughness of over 200 ft./lb. Note: When discussing the 9MM AR the assumption is made that the shooter is utilizing a carbine length buffer system. View Details Aero Precision AR-15 PRO Series Bolt Carrier Group (BCG) - Black Nitride . Sharps Xtreme Performance Bolt Carrier Group (Successor to the Relia-bolt) stag ambi charging handle faxon 14.5 midlength pencil barrel Geissele MK8 SLR Sentry 7 Gemtech Trek . The Whisper was first based on the little .221 Fireball cartridge cas. The BCG is all the way back. M16 Diamond (DLC) Bolt Carrier Group Out of stock SALE. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. You might not have noticed. I bashed the forward assist, but bolt is seized hard. If it's nw some of the treatments of metal can be a bit less than desirable which is normally remedied with running a little wet (not dripping but WET) and running a few magazines through it. My personal preference is the Hahn and Heavy Buffers offerings. I hadn't done much of anything since the previous day except to slide the bcg in and out of the chamber about twenty or thirty times really quickly to make sure they were moving and functioning fine. Are you sure it's the bolt binding, and it's not bound on the gas tube? Put your pins back in and smack the buttstock on the ground. Copyright 1996-2023 AR15.COM LLC. The bolt carrier group is also a part of the upper receiver to an AR-15. (never heard this term before today), but slamming the butt into the ground to get the bolt carrier unstuck seems like something to be done only when other people are shooting at you! It cleared fine. If you do that, remve the end plate slowly so the spring and detent for the take down pin doesn't come flying out. Recently bought a house and it had a bomb shelter in it. Your rifle is dry as a bone. stock trigger has a heavy pull and even heavier . I also tried forcing the BCG forward from the mag well, but again, seized hard and can't get the bolt to slide back into the BCG. See if there's any damage to the 45 degree relief cuts. I have had military rifles where the part of the forward assist that actually contacts the bolt breaks and locks the bolt forward. But be careful with that muzzle. I do, however, keep the barrel extension and chamber relatively clean. Does the BCG move freely into the upper without the lower? I still can't get the bolt carrier and bolt out of the upper. I am beyond OP's return dates. In a quick powerful motion shove the rifle forward and hang on causing it to come to a sudden stop. Today, I was taking it out, and I could not for the life of me get the bolt to unlock. Issue is that bolt won't rotate/slide back inside bolt carrier. LANTAC E-BCG Nickel Boron Enhanced Bolt Carrier Group EBCG (2) Sale. Yes. Use a quality recoil spring. Or am I stuck with replacing the entire BCG to get an M16 bolt carrier? Installed the safe door with 4 guys lifting it up as it weighs 500 pounds. Best I can figure, it found its way into a magazine, then miraculously fully fed into the firing pin channel. Well, when I had it apart earlier the buffer spring was staying in the buffer tube. Keeping the gun pointed in a safe direction-preferably muzzle up, hold the gun by the handguard and the charging handle. Check the charging handle / channel, bcg / chamber if anything goofy. Wanted to share my fallout vault door. AR-15 Nitride Bolt Carrier Group Mil-Spec. Toggle menu. Any use of this content without express written consent is prohibited. The first attempt to remedy any stoppage of an AR-15 should be what those in the know call Immediate Action: "Tap, Rack, and Reassess.". Take off the stock, loosen the castle nut, and unscrew the buffer tube. Realized it when trying to join upper and lower receiver. Car parking multiplayer gearbox tips. Bet-your-life dependability is a non-negotiable prerequisite. No AR15 build is complete without a high-grade Nickel Boron bolt carrier group - BCG . I had a blown primer do the same thing to mine. Also have you tried to lightly let the charging handle go forward just to see how easy it is for a round to go into battery? This video will show you how to disassemble your Sig Sauer P320. but i thought i would post this as a detailed guide. . I have yet to introduce this rifle to more rapid sequences of fire. The BCG will also ensure proper lock up when the rifle is fully into battery so you do not want to cut corners here. EDIT: FIXED! Disassembly of my Sig p320 compact. That's really dirty. Did you run polymer coated ammo by any chance? Bash on the forward assist? Check out our deals on our bolt carrier groups to complete an AR upper or to find a spare part. If the upper had been used/fired before and they used steel cased ammo . Short and to-the-point Video: AR-15 Bolt Carrier Group Disassembly (BCG) and Reassembly is really easy when you know what to do. Reactions: ken4570tc in WY. The Lower Parts Kit for AM-15 includes the following: Bolt Catch . In Stock. Grabbing onto a new round from the magazine and chambering it. My account; Checkout; GEAR UP! PSA 5.56 Premium Full Auto Bolt Carrier Group with Logo - 8779 . Return the BCGs to their original rifle and swap the charging handles. Create an account to follow your favorite communities and start taking part in conversations. Keep reading below. My rifles get some smoothing prior to shooting. Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: on the back side of the bolt (not the bcg), on the rounded/sloped part just behind the two c-rings where there's often a good amount of caked carbon on well used bolts, there was a solid deposit of fouling and copper. Then point the muzzle straight up and rap the butt sharply on the ground. If done correctly it will not damage the rifle and is a much safer way to get a stubborn round out. B2-K630-A001-0P. The BCG is stuck pretty far back in the buffer tube. Without question the biggest malfunction 9MM AR shooters experience is a broken bolt stop, broken bolt catch. I was at the range today and had a FTE. Had the gun been cleaned before it was put up? Assuming that your upper is still attached to your lower start by making sure your bolt is in battery and then push the rear pin (called the takedown pin) till it clicks and is held captive on the right side of the receiver. Solution Part One The Colt 9mm buffer is 3.300 long. I'm assuming the problem is the BCG, but I don't get why it works on my nice ar but not on the cheapo ar. Me being relatively new to the AK, but not new to disassembly/reassembly of mechanical things, I can tell you don't force anything. !echo: don't have to mess around with buffer springs and trigger springs, a drop in unit, has a trigger lock where you can't out run the bolt. AR-9 9MM BOLT CARRIER GROUP - GLOCK AND COLT BCG - WMD NiB-X NICKEL BORON. Out of stock. This slightly wears in the parts and gas rings and makes the initial rounds chamber and eject easier. Unity Tactical Modlite ModButton Lite - Surefire/Modlite . 2. View as Grid List. Does the round at all look deformed? When firing the bolt will get stuck in the chamber, in order to eject the casing I will have to grab the charging handle and bump the buttstock to dislodge it . It's a solid bolt carrier group, with a few upgrades over a true mil-spec bolt carrier group. thanks for your reply. It'll likely serve you well afterwards. The longer buffers reduce the amount of travel available to the bolt. I just bought a fully assembled upper from a guy who builds guns locally. Well it sounds like the bolt is not wanting to rotate and unlock from the chamber. Put the gun back together. This over-travel condition allows the 9MM AR Bolt to travel too fast in the forward direction causing premature failure of the bolt catch. $ 73.99 - $ 75.99. You could also look at the forward assist. Reason Two The blow back nature of the 9MM AR recoil system provides the 9MM bolt with some serious energy and velocity. and responded with an answer, because my bolt (well entire carrier really) did in fact get stuck in the open position due to the casing/ejection jam. Perhaps a tad catawampus or debris. I have also traded out the charging handles on both rifles and have tried all combinations of BCG's and Charging handles on both rifles with no differences made, so the charging handle seems to be alright. Solution Part Two Some shooters have reduced recoil and improved reliability buy using a 9mm AR buffer that in addition to being longer than standard 9mm AR buffer it is also heavier. If you do that, remve the end plate slowly so the spring and detent for the take down pin doesn't come flying out. Obviously, if the fit is too tight for the "problem" BCG to work in the "problem" rifle, it might get stuck in the buffer tube. Get rid of fancy BCG sand use a standard one. I prefer a more professionally engineered solution that is simpler and has less parts. Laziness is not an excuse. Thanks so much for your helpful reply. Shop with us and get the best bolt carrier group on the market today! The case wound up being stuck in the chamber (it didn't burst or anything, but was stuck in there pretty good). Its an American Tactical upper and an 80% built lower. I put it in the safe. check out the. #mortartechnique #ar15charginghandlestuck #stuckcharginghandle0:00 Thumbnail Intro0:06 My 1st hand experience with this type of malfunction0:45 re-creating the malfunction with an empty shell casing1:32 How to fix your ar-15 malfunction using the mortaring technique2:08 problem solved! By Instagram Facebook-f Youtube. I had a broken decapping pin from a reloading die end up in my chamber once. Unfortunately though sometimes the best researched plans do not uncover shortcomings of the AR and in this case the 9MM AR. Try the Mortar thunk first, I forgot about that. I would never let any of my ARs look like that.

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