Copyright 1996-2023 AR15.COM LLC. Here is a video on how to do it. Only $ 149.99. 26 items . The issue is the bolt won't move inside the BCG, and therefore won't go into battery enough for the BCG to clear the buffer tube enough to separate the upper and lower. MAS DEFENSE 12.62" NERO M-LOK FREE FLOAT - BLACK. Today, I was taking it out, and I could not for the life of me get the bolt to unlock. 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. That's really dirty. Did you run polymer coated ammo by any chance? Foreign debris, some random smashed small roll pin (not an AR part) fell out the muzzle after trying the nose-slam suggested in comments. Platform: AR-10. K. ken4570tc in WY Gunny Sergeant. 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. In stock QUICK ADD . Get rid of fancy BCG sand use a standard one. 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. The charging handle would not pull back to eject the live round in the chamber. The 9MM AR platform requires some specialized rifle parts to function reliably and prolong longevity of the hardware. Or, You might have a burst shell casing that's hung up on the Bolt. It's nice to know whether or not it's live, even though it is going to be treated like it is anyways. This was the fix, thanks! $162.54. Do this a couple times and it should free your BCG up. 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.". Shop CMC Triggers Enhanced AR Bolt Carrier Group | Up to 10% Off 4.3 Star Rating on 6 Reviews for CMC Triggers Enhanced AR Bolt Carrier Group Best Rated + Free Shipping over $49. Check the charging handle / channel, bcg / chamber if anything goofy. Create an account to follow your favorite communities and start taking part in conversations. 20 BA 6ARC barrel, 16 SLR Handguard (mlok), Odin Works 6ARC BCG, TriggerTech AR-15 Trigger. View Details Angstadt Arms 9mm Bolt Carrier Assembly Bolt Finish: Parkerized. Answer (1 of 8): Is an AR-15 .300 AAC Blackout bolt carrier group the same as a .223/5.56 BCG? I have never seen a carrier look like yours. It may not display this or other websites correctly. 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. My experience is that when a bolt locks up, with nothing in the chamber, it's always been a popped primer/anvil in there, and they often fly out when you jack it open. It sort of worked. All Rights Reserved. On select areas, especially during warm weather, I prefer grease though if in a sandy environment I'd stick with oil. Do a function check. This will allow your AR15 upper to pivot forward from your . I have yet to introduce this rifle to more rapid sequences of fire. I would never let any of my ARs look like that. Me being relatively new to the AK, but not new to disassembly/reassembly of mechanical things, I can tell you don't force anything. $157.49. This is odd. what lower? For a better experience, please enable JavaScript in your browser before proceeding. Is this a complete lower (hammer, trigger installed)? Oh and yes i know this is referred to as "mortaring". The Bolt Carrier Group (BCG) on an AR-15 is the collection of components of the rifle or pistol that performs the following functions when the trigger is pulled: Fires the cartridge. Conclusion To prevent a 9MM AR Broken Bolt Catch select a 9mm AR buffer that is at least 3.600 inches long and weighs more than 5.5 ounces. A thorough cleaning followed by the liberal application of lube is in order. I do, however, keep the barrel extension and chamber relatively clean. 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. 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! I put it in the safe. That bolt is encrusted and the chamber is filthy. Well, despite my shoulder, I went to the range yesterday. Use common sense. Disassemble and clean/lube the sharps BCG. "After attempting this a few times I called another guy at the range over and we pulled from two ends of the gun, me from the barrel and him from the charging handle.". Car parking multiplayer gearbox tips. Sale. The BCG is all the way back. Add to Wish List Add to Compare. It'll likely serve you well afterwards. Instagram Facebook-f Youtube. LANTAC 5.56/.223 M-SPEC Bolt Carrier Group - QPQ Black Nitride. Took it back to the range today and ran about 15 rounds through it and it misfired. 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. 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. Back to old site If there is anything in your cart, it will not be brought over to the old site. i have a few thousand rounds on mine and no issues or deformation. My rifles get some smoothing prior to shooting. /r/ar15 is here for your favorite black gun links, build pics, questions and other tactical or practical information. Reason One A 9MM AR Bolt is shorter than a milspec AR-15 Bolt Carrier Group. JavaScript is disabled. Add to Wish List Add to Compare. Thanks so much for your helpful reply. [ARCHIVED THREAD] - Bolt carrier stuck in buffer tube. EDIT: FIXED! While I think a well broken in AR probably doesn't need as much lube as I put on it, you may be stretching the limits there OP. COMPANY. Stuck Bolt Carrier Group. I just bought a fully assembled upper from a guy who builds guns locally. You can also check: Best Budget AR 10 Barrels. buffer tube), or threaded tail of the lower receiver where the receiver extension screws in. 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 . Grabbing onto and ejecting the spent casing from the fired round. The mass & inertia of the bolt carrier group will pop the stuck round out of the chamber. Bolt Carrier Group Assembly, 6.5 Grendel, M16 Profile, Nitride Bolt & Carrier [Retail Packaged] B2-K630-BA00-0P. See if there's any damage to the 45 degree relief cuts. 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 . I was using Federal .223 FMJ rounds. Pushed on it and heard it click. As the BCG moves rearward with the bolt and cam pin held in place, the machined slot in the BCG that the cam pin rides,acts on the cam pin and rotates the bolt until the bolt lugs clear the extension allowing the bolt to move rearward. Out of stock. Redirects gas produced from firing to perform other functions. All AR-15 platform rifles ha. Expand. You got to lube these rifles . Before replacing the upper, do one more test--swap both the charging handles and the BCGs of the rifles. Any ideas? Take off the stock, loosen the castle nut, and unscrew the buffer tube. Some thrifty and clever shooters have added spacers, five stacked quarters etc in their buttstock, added weights to their buffers and made modifications to the buffer to increase its overall length and weight. Stuck with this junk unless I can convince Faxon to fix it. 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 . View Details F-1 Firearms 5.56 NATO DuraBolt Bolt Carrier Group (BCG) - TTZ Gold . Short and to-the-point Video: AR-15 Bolt Carrier Group Disassembly (BCG) and Reassembly is really easy when you know what to do. The bolt carrier group is complete; before continuing lightly apply your oil/lube across the entire BCG but especially the contact . Without question the biggest malfunction 9MM AR shooters experience is a broken bolt stop, broken bolt catch. Angstadt Arms Bolt Carrier Group - 9mm. made via mim so some longevity issues may arise sometime in the future. Don't forget, you can always check for a live round in the chamber by inserting something down the barrel and seeing where it stops. As far as I know this only applies to 9MM AR rifles, SBRs, carbines and pistols who use a 9MM specific AR bolt catch. I have to tap it on the ground to get the buffer spring to push the . Well I would completely take that BCG apart and wash and clean it up good, then lube real well, it looks dirty to me, I don't clean my guns every time I shoot them and none of my BCG's look that dirty, also being a Sharps BCG, I would pick up a back up BCG. Took a few whacks. Look for the shiny spots in the upper caused by the bolt carrier. I would start by replacing that bolt/carrier. Tensile strengths of 1550-1600 mpa, or 220,000-235,000 psi. Otherwise it was three short groups with three to five minutes in between. So I was shooting my AR last week, and it was functioning fine. I know, dumb as he.. and not paying attention. BCG stuck No, when the BCG moves rearward, the bolt is held by the receiver extension. 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? Harry from UBR Tech gave a tutorial on how to disassemble and reassemble a Sig P320This video is to show you how to assemble and disassemble purposes of repa. Which in turn fires the bullet. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. It is stuck! I have a BCM carrier with old FN bolt that I treat about the same and it runs well without much lube. 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 . If that fails tap the Handle. Carrier looks dirty as he'll. I know it seems a bit harsh, but it works, it's what the military has been doing for years. This full auto carrier is heat treated and precision machined. If done correctly it will not damage the rifle and is a much safer way to get a stubborn round out. Should I try freeing it up myself, or take it to an armorer? If you recoil spring feels week replace it with a Wolff XP or from another reputable manufacturer. Put the gun back together. That would meen that chamber has never seen a steel case . Then point the muzzle straight up and rap the butt sharply on the ground. (I had my M&P15 do this occasionally when using steel case ammo I never could figure out what it was about the steel cased ammo that was causing the problem) Have you tried to manually run some rounds thru it with a full magizine to see if any get stuck? Best AR-15 BCGs. 406-304-8183 Login or Sign Up; 0. See if they are willing to fix it to make it right (don't know if he guarantees his work). (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! How new is everything, could be just tight because of being new parts needing to work into each other, or possible the bolt was not rotating correctly, make sure and take the bolt control group apart and check everything. Just bought a AR15 carbine on sunday. I currently have the lower fully assembled, upper receiver, bolt carrier group, and charging handle. From my own personal experience, installing a bolt 180deg opposite of where it should be in the carrier.or essentiallyejector facing inside the upper receiver. The BCG moves freely already. November 14, 2010 in The Beginners AR15 Armory. and responded with an answer, because my bolt (well entire carrier really) did in fact get stuck in the open position due to the . Running it suppressed most of the time with minimal lube it still runs well. IMHO simplest answer is your BCG is that nickel boron type and could possible be on the thick/over finished side and if that's coupled with a bolt that's a hair on the overcut sized=lock up in my opinion. Is/was the upper new ? Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Maybe a loose Gas Key holding it up? So I tried to lube it up but its still very rough and feels like there is a lot of friction going on. You might want to pick up a cheap DS arms BCG just to have on hand. Pros: Looks great; Cons: Out of tolerance/no QA; Best Used for: Door . won't clear the lower because the BCG is still sticking into the buffer tube about half an inch. Flat Dark Earth m16 FDE pvd ar15 bolt carrier group BCG $ 248.80 $ 199.80-43%. Recently bought a house and it had a bomb shelter in it. Was the bolt stuck with a round in the chamber? Clean the barrel nut lugs. SALE PRICE: $137.75. Out of stock. (another big mistake) and the bolt and carrier is now stuck in the upper receiver. Because it's a nickel boron bcg, I was hoping this would be the magic solution that prevented me from having to lube anything. The apparent problem is that the "problem" BCG is wider than standard and your "problem" rifle's upper (and probably lower receiver extension) is slightly smaller than average. The magazine is out. This over-travel condition allows the 9MM AR Bolt to travel too fast in the forward direction causing premature failure of the bolt catch. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. 9mm Nitride Hybrid Bolt Carrier Group for Glock & Colt AR15 mags $ 224.89 $ 119.00-20% Out of stock. Do this a couple times and it should free your BCG up. So far the drum stuff hasnt been that bad, course having Mike around to post updates & videos helped a ton. Any use of this content without express written consent is prohibited. They also drilled the gas port out a little larger since I am using a low mass carrier and adjustable gas block. 1,592. Can you see the bolt carrier through the mag well? Failure to Feed, Chamber or lock (Click image to view larger image) Probable Causes. Carrier Style: Standard. CONFIRM CANCEL. Soaking wet. I did the mortar maneuver. The issue is the bolt won't move inside the BCG, and therefore won't go into battery . 6.5 Type II Grendel Nitride Bolt Assembly $ 99.95 $ 69.95 SALE. Charpy C-Notch. The bcg should come right back. Any use of this content without express written consent is prohibited. Two Reasons a 9MM AR Bolt Catch Breaks. So there's a direct relationship between the buffer and the bolt. This energy and velocity combined with the over travel condition of the bolt cause premature failure of the 9MM AR Bolt Catch. IN STOCK. Was in a hurry putting my MPX back together after cleaning and put the bolt carrier group into the upper receiver backwards. Ejects the spent cartridge after firing. You might not have noticed. When you swap uppers, do you also swap bolt carriers? The Blackout, dimensionally, is identical (for all intents and purposes) to the .300 Whisper, developed by J.D. Resetting the hammer in the lower receiver. Those pictures don't help. A different 9MM buffer is needed and possibly a higher quality buffer spring. We offer bolt carrier groups for various AR-15 builds. Without going into too much detail, when you fire your rifle, gas moves from the barrel up through the gas tube and back into the gas key. Specifications: Brand: Bear Creek Arsenal. Gas tube alignment could be the culprit. Take a pic of the rear of the bolt lugs. Specs: Mil-spec Carpenter No. The purpose of the special 9MM Catch is to allow the bolt hold open feature to function with the Colt 32 Round magazines, their clones and modified UZI magazines. !2:14 My theories and speculation as to what causes this malfunction to happen2:51 Asking for viewers opinions on what causes this common malfunction3:20 IMPORTANT!! Perfect for your next .308/.243/6.5 Creedmoor Rear Charging AR-10 build. no accidental firing. "We will never sleep, 'cause sleep is for the weak. Anyway shot it Monday ran 60 rounds through it no problem. Courtesy Firearms History. This over-travel condition allows the 9MM AR Bolt to travel too fast in the forward direction causing premature failure of the bolt catch. The BCG will also ensure proper lock up when the rifle is fully into battery so you do not want to cut corners here. 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.