I do, however, keep the barrel extension and chamber relatively clean. When I let the BCG go forward, won't go into battery enough for the BCG to clear the buffer tube. Add to Cart. Laziness is not an excuse. 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. Today, I was taking it out, and I could not for the life of me get the bolt to unlock. thanks for your reply. $ 73.99 - $ 75.99. 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. The image below gives a nice breakdown of the parts in a typical BCG. 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. Fortunately the solution and prevention are pretty easy. My account; Checkout; GEAR UP! 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. 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. Regular Price $169.99 Special Price $89.99. Radian Weapons Enhanced Bolt Carrier Group (BCG) $ 210.00 Read more; Radian Weapons Takedown Pins Kit - AR15 $ 32.95 - $ 54.95 Select options; Keep In Touch. I use mid range reloads so I couldn't figure why it would be jammed.. Caliber / Gauge: .308 / 6.5 Creedmoor / .243 Winchester / .22-250. TLDR: Your rifles are fine. I know, dumb as he.. and not paying attention. This unfortunately allows the 9MM bolt to travel further down the buffer tube than necessary. ORION TRAINING GROUP; Faxon 5.56/300 BLK Gunner Light Weight Bolt Carrier Group Nitride M16 Bolt Carrier Group AR15 BCG. I tried cycling it a few times and it never would seat. The easy way to do this is to get on your knees, lay the stock flat against the floor, make sure the stock is fully retracted, grab the charging handle with one hand, and the forend with the other. That's really dirty. Did you run polymer coated ammo by any chance? Perhaps it's the zoomed pic but that bcg looks like crap. CONFIRM CANCEL. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 6.5 Type II Grendel Nitride Bolt Assembly $ 99.95 $ 69.95 SALE. I have to tap it on the ground to get the buffer spring to push the . Before you do any removing of anything, or hacksawing please do the following. The bolt carrier and Bolt would not fully seat. It is comprised of the bolt, carrier, extractor, ejector, gas key, gas rings, cam pin, firing [in, and the firing pin retaining pin. Well, I am sitting in front of the tv anyway doing nothing. This video will show you how to disassemble your Sig Sauer P320. They also drilled the gas port out a little larger since I am using a low mass carrier and adjustable gas block. High-quality AR15 Bolt Carrier Group (BCG) at Affordable Prices. Or stuck on an empty chamber? There is a couple reasons for this common issue of a broken bolt stop, broken bolt catch with the 9MM AR platform. Because it's a nickel boron bcg, I was hoping this would be the magic solution that prevented me from having to lube anything. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. You could also look at the forward assist. Issue is that bolt won't rotate/slide back inside bolt carrier. Any way you could get a screwdiver in there and move it forward. It might not be square. Add to Wish List Add to Compare. . Recently bought a house and it had a bomb shelter in it. Also it caused other issues, like the bolt over-running the bolt catch on the last round. AR-15 Nitride Bolt Carrier Group Mil-Spec. 499. Bolt Finish: Parkerized. Foreign debris, some random smashed small roll pin (not an AR part) fell out the muzzle after trying the nose-slam suggested in comments. Shop KAK AR-15 Lower Parts Kit | 10% Off 4. When you put the upper from the problem upper on the non-problem lower, does the BCG from the problem rifle bind in the buffer of the non-problem rifle? $289.95. Any use of this content without express written consent is prohibited. $157.49. http://www.bushmaster.com/anatomy_bushmaster.asp. Oh and yes i know this is referred to as "mortaring". most likely the cheap amazon prime sights thats killing your gun. I took out the XPB BCG and put my original BCG back in and it runs smooth after that. A similar incident happened at the range last week and the guy had some debris stuck in the locking lugs. Turn the Bolt, aligning the larger opening with the Bolt Carrier opening just below the Carrier Key. Try this: swap BCGs, not uppers. SALE PRICE: $137.75. 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. Sometimes if the cotter pin is put in wrong it can catch. Reactions: ken4570tc in WY. If your bolt is stuck and you've shot more than 1000 rounds, the culprit might be your buffer spring. Rating: 97% Regular Price $139.99 Special Price $99.99 $79. You could try to remove the buffer tube. The quickest way to find problems with a weapon is to simply shoot it and shoot it a lot. It may not display this or other websites correctly. About Us Policies Reviews How To. Don't know if that's what was needed or not, but as I said, it worked fine yesterday. BCA M16 Cut 5. Back to old site If there is anything in your cart, it will not be brought over to the old site. Was in a hurry putting my MPX back together after cleaning and put the bolt carrier group into the upper receiver backwards. For a better experience, please enable JavaScript in your browser before proceeding. I read the title (What can cause a bolt to get stuck?) Maybe there is/was a bur in the barrel at the gas port . Tensile strengths of 1550-1600 mpa, or 220,000-235,000 psi. AT3 AR-15 Bolt Carrier Group - 5.56 NATO/.300 Blackout - Nickel Boron. The magazine is out. The reason why I ask is its very common with new guns for an assembler to not have that buffer tube screwed in far enough to hold that retaining pin which is spring loaded down. Than, lift the rifle up about 1 foot or so and bring it onto the ground with considerable force. Quote. mortaring your rifle fixes this type 4 malfunction that occurs in the AR15 weapon platform. Check the charging handle / channel, bcg / chamber if anything goofy. 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? Open the actions of both rifles and show pictures of the uppers from the rear, the lowers from the top, and the bolt carrier groups, as well as the charging handles--photograph the components from the top, as well as side profiles. Put the gun back together. Remember ARs like it very wet to function well. Was the bolt stuck with a round in the chamber? Contact who you purchased it from. 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. Rating: 93%. Angstadt Arms Bolt Carrier Group - 9mm. Me being relatively new to the AK, but not new to disassembly/reassembly of mechanical things, I can tell you don't force anything. EDIT: FIXED! This slightly wears in the parts and gas rings and makes the initial rounds chamber and eject easier. Bet-your-life dependability is a non-negotiable prerequisite. The issue is the bolt won't move inside the BCG, and therefore won't go into battery . See post edit for details. AR-9 9MM BOLT CARRIER GROUP - GLOCK AND COLT BCG - WMD NiB-X NICKEL BORON. Been playing this a lot with my teenage son, and having a blast. $249.00 On sale: $217.95 In Stock. 800-741-0015 . I'm not sure. If there is no problem in the non-problem rifle and the problem rifle continues to have the binding issue, this leaves the problem rifle's upper as the problem. If you have a standard stock, you can remove the upper buttplate screw and insert a small rod and tap the carrier forward. This over-travel condition allows the 9MM AR Bolt to travel too fast in the forward direction causing premature failure of the bolt catch. Those pictures don't help. The Blackout, dimensionally, is identical (for all intents and purposes) to the .300 Whisper, developed by J.D. Can't say I'm in favor of "mortaring" the rifle. Re: help!!!! JavaScript is disabled. here is the album of photos, let me know if there are any others i should include: http://imgur.com/gallery/ezQxC. 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 kee. The round (unfired) would eject but the bolt would not seat. 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. The bolt carrier group is the heart of any AR10/AR15/M4/M16 type rifle, carbine or AR pistol. Well, after numerous attempts with a padded dowel, vice and hammer, ive had no luck. Shop Faxon Firearms 5.56/300BLK M16 Bolt Carrier Group | 17% Off Customer Rated on 11 Reviews for Faxon Firearms 5.56/300BLK M16 Bolt Carrier Group On Sale + Free Shipping over $49. Check out our deals on our bolt carrier groups to complete an AR upper or to find a spare part. I traded out the BCG on the problem gun with my good BCG and it works just fine. Copyright 1996-2023 AR15.COM LLC. Sale. Perfect for your next .308/.243/6.5 Creedmoor Rear Charging AR-10 build. If you have another BCG I'd try it. Stuck Bolt Carrier Group. Flat Dark Earth m16 FDE pvd ar15 bolt carrier group BCG $ 248.80 $ 199.80-43%. Create an account to follow your favorite communities and start taking part in conversations. You might want to pick up a cheap DS arms BCG just to have on hand. I had a blown primer do the same thing to mine. Ejects the spent cartridge after firing. Aero Precision 6.5 Grendel/6mm ARC Bolt Carrier Group, Complete - Black Nitride AR15/M16 Full Auto BCG. AR 10 Charging Handles Review. 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. PSA 5.56 Premium Full Auto Bolt Carrier Group with Logo - 8779 . I use mostly Mobil 1 though about anything is better than nothing. 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. Your rifle is dry as a bone. Best I can figure, it found its way into a magazine, then miraculously fully fed into the firing pin channel. What else could it be? AR-308 Accuracy problems. Grabbing onto and ejecting the spent casing from the fired round. Got it. 16" 5.56 / .223 1x7 GOVERNMENT 4150 CrMoV MELONITE NITRIDE BARREL - MID-LENGTH GAS. No AR15 build is complete without a high-grade Nickel Boron bolt carrier group - BCG . Safety Guideline's for using this technique3:30 Outro The bolt carrier group controls all functions of the AR15 - chambering, firing, and extracting spent rounds. Thanks so much for your helpful reply. 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. ARFCOM is full of answers, mine is just one consideration. See if they are willing to fix it to make it right (don't know if he guarantees his work). It sort of worked. I read earlier in posts about cleaning and will say this in my experience as long as you have your stick lubed up with a decent CLP, it really shouldn't matter how dirty it is given your AO. I would just take off the castle nut and unscrew the buffer if nothing else. If you have any experience to offer send us a message. $162.54. Choose wisely with AT3 Tactical. Is this a complete lower (hammer, trigger installed)? AR-10 .308 BOLT CARRIER GROUP DPMS GEN 1 BCG - UCT EXO NICKEL BORON. Check JP Enterprise but I'm thinking colt bcg have a proprietary cut to them?? Take the advice from everybody that posted. Unfortunately it will take several weeks to have corrected. Because the BCG is half an inch or so into the buffer tube, I can't separate the two halves. Y en este artculo te lo ensearemos a cmo hacerlo. But somehow I failed to notice the buildup on the backside of the bolt. 7.62 x 39mm Caliber Bolt Assembly Nitride $ 99.95 $ 69.95 SALE. This is odd. Otherwise it was three short groups with three to five minutes in between.