Bcg getting stuck in buffer tube. A place to discuss variants [ARCHIVED THREAD] - bcg stuck in buffer tube. This For ours, I figured out that nothing was stuck or jammed. Just how is that possible? Try and fit a BCG in any buffer tube. Sounds like your headspace may be off enough that your BCG is just fucking hammering that brass in there and getting stuck. Just put a mil spec Magpul Moe stock and buffer tube on my AR and when I pull the BCG to the rear it sticks in the buffer tube. I think the "click" is when the buffer pin hits this channel, past the threads and prevents you from screwing the buffer tube any further. I can pull it For some reason, I can't get the BCG back when I pull the charging handle. There's only so many things a problem can be and this is a weird one. But I can't get the bolt to budge. Had to remove the action tube and lube the BCG and took a 2x2 stud and pounded on the BCG back and forth to drive it back into battery and off the firing pin. Adams Arms piston upper if that makes any difference. Didn't even have takedown pin defends and springs installed. Finally managed to get the buffer retention screw down to try to #1 · Mar 9, 2010. I may not even get to hear about the outcome, it was a friend of a friends rifle, but if I do, I'll let you guys know what it was. See pictures. Might need to Take the upper off and push the BCG down the buffer tube, if it's still stuck you might have the wrong buffer and spring in there. The carrier wiggles a little bit. Most builders try and limit the bolt travel to 1/8 inch or so past the bolt catch. What triggered this My new Trybe Defense nickel boron BCG got stuck the first time I used it. Shoot a bunch and it should loosen up if things are just tight and aligned properly. Pisses me off lol Reply reply More posts you may like r/AR9. But if the bolt head starts sliding down, you should try replacing the gas rings. Jp BCG Jp silent captured spring PWS advanced buffer tube M118 LR ammo Observations: Rifle will manually cycle through a magazine smoothly (not firing) 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 The "channel" that is machined into the bottom of the buffer tube (actually a fixed telestock, but since they functioned the same it was easier to type buffer tube) extends past the threads. It is not ejecting casing. (Make sure it's UNLOADED first, of course) When I try to cycle the bolt the BCG gets stuck halway into the buffer tube. This can help prevent the BCG from hitting the receiver. If it fell out easily it was good and if it got stuck it was bad. The BCG of this rifle is binding in the buffer tube every time I cock it (starts getting stuck around 1/2 - 2/3 of the way back) but when I put the upper from my nicer rifle on this lower, it doesn't Put the upper and lower back together. 2. There is a VERY SLIGHT scraping sound coming from when the BCG first makes contact with the bottom of the buffer tube which makes sense as it is canted upwards towards the rear. The BCG is not centered vertically with the buffer tube (It's higher than it should be). Stick your finger in the ejection port and try to push the BCG forward while working the trigger. r/AR9. It's a Palmetto State lower with a rifle length buffer tube, and a 20-inch Rock River standard A4 upper. I can tap on the side of the receiver and the I would bet you have a blown primer stuck inside buffer tube/upper with bolt carrier OR your buffer detent broke and is stuck in your buffer tube/upper along with your bolt carrier. All you can do for this one is head back to the bench, break the rifle down, and replace that spring with a quality replacement buffer spring like the one offered in Spike’s Tactical AR-15 Buffer Tube Assembly No bolt catch was installed. Now the BCG is stuck and I cant get out or even get the upper and lower apartcan anyone lend me some advice? Posted: 9/23/2009 2:27:56 PM EST Odin Works Mid-Length Gas Tube. 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 Ok. . If the bolt stays in place without budging, great. But it loosened up. Literally a FCG, buffer tube and an upper with takedown pins dropped in the holes to hold the upper on. Pulling back, it feels like it's binding towards the end of the pull because it's not in line with the tube. The bolt itself is not stuck in the buffer tube, the bolt carrier is stuck in it. Do you find AR9 or AR PCC to be unreliable? This thing has run like a champ once we got it so The gun went bang, but the bcg didn't cycle at all. With suppressor, it did actually eject between 2-3 So I have a 416ish upper built with a brownells bcg. As far as I can tell the buffer tube is out of spec so it’s too tight for the BCG, or there’s a bump in there or something. I loosened the castle nut to take the tube off Put upper on other lowers, works fine. This happened after putting 50-60 rounds through it at Surely you mean the gas tube, not buffer tube? OP says the BCG is getting stuck to the rear, I'm thinking similar to when you pull the bolt back with no spring/buffer in the remember on the SCS setup, you need it more forward than a std spring and buffer would be. Pop open the upper and remove the BCG. The kinetic energy stored in the buffer spring then unloads back into the BCG, pushing it back forward into the receiver and resetting the action. CH The gas tube does not seem to be shifting, but the BCG does have a lot of carbon build up on the sides of the gas key. Bcg stuck in the rear position, I can lock it back and hit the bolt release but it stops about a half inch. The hammer would partially block the 416 BCG as it was pulled rearward and get stuck. Eliminating upper, BCG, and CH. Was only using the lower to test a trigger and needed a carrier/complete upper with buffer spring to return the carrier to do so properly. the charging handle and bcg were so stuck that i couldn't pull hard enough to free it. shouldn't be a problem anymore right? And no, not If the gas block / gas tube don't slide over the barrel and through the hole into the upper smoothly without interference, your barrel nut might not be properly timed. With this configuration my rifle was shooting great. So, in one respect, it’s vital to the operation of certain autoloading rifles (like I begin messing with the gas pressure and buffer weights, but every few rounds or so, the bolt gets stuck again. I definitely should have said, but, I don't have a barrel installed at 292K subscribers in the ar15 community. Gets stuck about an inch back. Loosening the I am looking for some troubleshooting ideas for a stuck BCG I have a 7. Luckily i was with my SF friend who PSA 300 blk Bolt carrier group stuck in buffer tube. I took the bcg apart and wiped it down to get the crud off and reassembled everything. I’ve been running it on a KAC lower without issues but when I tried putting it on an Aero lower the BCG would consistently A few thoughts: the hammer is putting too much pressure on the bcg while charging, your buffer tube is slight canted in one direction, or the buffer is actually the culprit, which is getting stuck BCG is halfway in buffer. Needs to be a 1/4 in gap between My issue is: 1. Pounded it forward until it was almost in battery. The CH and BCG from this rifle worked fine in the other upper, while the new BCG got stuck again in this upper. Not sure if this is the root causebut check it out and see if this might be the cause. About halfway through the first magazine (ZQI 62 grain) I pull the trigger and it just goes click, no bang. what psa said the buffer may have blown and made an indent on the inside of the buffer tube which If you think your BCG is functioning properly and the gas tube looks good I'd still move on to BCG and buffer mass next. I pulled Re: help!!!! BCG stuck No, when the BCG moves rearward, the bolt is held by the receiver extension. it cycles fine and locks manually. OK, so, the BCG does seem to get stuck in the buffer tube unless I give it a nice little smack, then it goes into battery. Put lower in question on two other know working uppers, same issue, stuck! Removed tube and dropped Just how is that possible? Try and fit a BCG in any buffer tube. **Edit- Thank you everyone for the advice, I will be playing with the gas block and gas tube. It took me awhile to find out that was the issue after trying different retainer pins. The Buffer is equal to an H3 and is the recommended weight for mixed use, suppressed/unsuppressed. BCGs. That’s the most basic, inexpensive fix. Any advice would be appreciated! *Edit- I can't word good. I've had a complete Anderson lower for a while now and finally got around to getting an upper for it. (short stroke) it it doesn't lock open on final round. Is the BCG No buffer? Allowing the bcg to travel back too far? It's a relatively simple machine. BCG seems to be all the way forward. *Edit*- Found my issue was due to my charging handle hitting an excessively thick buffer tube end plate. He needed a new firing pin, but what a pain in the ass! If it was the BCG getting stuck in the tube, the handle should still be able to slide forwards independently from the BCG but this is not the case. ATI is bottom of the barrel stuff and there has been problems reported on their buffer tubes. The rifle is a factory complete Bushy, 6 or 7 years old, shot about 500 rnds a year and stuck in the closet (<figure of speech!) The buffer tube, and buffer are all ok. It all went back smoothly, but again will not pull all of the way back most of the time. UPDATE fixed. Assuming you’ve ruled out magazine issues, you may have a damaged, worn, or completely broken buffer spring. I had a fail zero bcg that was getting stuck on the gas tube but after 25 to 50 rounds everything loosened up and it shot fine. As I said in the OP I am only really able to mortar the gun into the bolt-back position, otherwise it just feels like I'm pulling an unmovable object. My charging handle/BCG won’t go all the way back because it keeps hitting the PWS buffer tube. The hammer fell, and now the BCG is stuck. I have to tap it on the ground to get the buffer spring to push the bolt back forward. I just finished a dpms style build that isn't cycling. It seems that the bolt itself is bound in the chamber. I triple checked that theory on the bad batch and it helped me. ARCHIVED; had a brain fart and forgot to install the buffer and spring. It would not move back any more so I thought to bang the BCG forward. Even when not attached to the lower. Mil-Spec AR-15 Buffer Tube Kit + Premium AR-15 We would like to show you a description here but the site won’t allow us. hence the o ring from the buffer tube. Full Member. I can push the buffer all of the way back with no issue and it comes back forward. It fires a round then the case gets stuck in the chamber and I have to mortar it out. Using a weak spring, wrong buffer, It *was* getting stuck when the BCG passes into the buffer tube. Doesnt seem to be a feeding issue yet since the BCG is getting stuck in the RE after the first shot every time . But I think i mortared it. Reply reply Bcg stuck in the rear position. like others have said, throw a When i work the bolt via the charging handle, the bolt will get stuck in the buffer tube. scharfschutze762 Sergeant. Spinta Precision NiB BCG BCM Mod 4. Now the bcg is stuck and I’ve been trying to tap it out and not having any luck and also don’t wanna destroy anything. Until that point, the spring pushes it back forward as usual, but beyond that it gets stuck. I can barely budge the charging handle and the carrier. However, be So I recently bought a PWS MK111 PRO upper and put together a lower using an Aero M4E1, when I pull the charging handle back, the BCG gets stuck in the buffer tube. Posted: 7/12/2020 2:56:10 PM EST [#1] Try inserting a 4 or 5 quarters into the buffer tube before installing the spring and buffer. Without a buffer tube and system, when you pulled the trigger, the BCG would just slam rearward and never reset. I doubt I'd feel comfortable slamming the muzzle of my guns down on a block The RDB BCG got stuck and I was able to get it forward. I currently have it at the perfect spot, it does not get stuck. I don't have another DI bolt to try, but the charging handle moves Upgrading to a heavier buffer, such as an H2 or H3 buffer, will slow down the BCG and reduce felt recoil. Gas tube is getting jammed on the gas key on the bcg. It happens Finish Your Build Kit: A-Frame Skeleton Stock w/ Integral Rubberized Butt Pad + Complete Mil-Spec AR-15 Lower Parts Kit + Omega Mfg. It's physically impossible for the gas key to enter the tube! It sounds like your buffer tube is cocked, check As the BCG cycles to the rear, you feel a "push" as the spring compresses, followed by a "punch" as the BCG and buffer bottom out in the buffer tube, followed by a "push" as the spring Armalite buffer tube is 7 and 7/8" long, I run them on two 308 AR DPMS high pattern Aero precision builds I built, my other 308 AR runs an A2 stock and AR10 rifle buffer, but all three Was the buffer tube, Don't ask me why but swapping it fixed the issue. Your gas tube is either misaligned or something is a little out of spec. I was worried about this! but it turned out to be no big deal. I don’t remember how I did it. Obviously the issue was with the upper itself, not the BCG or CH. Either the bolt or maybe the cam pin seems to be stuck tight. 62x39 AR-15 upper that I have been running for a while now just fine. BCG was still stuck. It's physically impossible for the gas key to enter the tube! It sounds like your buffer tube is cocked, check the inside of the buffer tube for carrier rub. How and where would be the best place to modify the lower to make the upper and lower match up better for BCG and tube alignment? BUFFER SPRING PROBLEMS. that way it has a little positive pressure on the BCG. S. Mortoring and bumping barrel didn’t work, pushing through hole at back of buffer tube didn’t work. BCG Sticking in Buffer Tube. Gibbz upper, Toolcraft BCG, BA Barrell and wojtek adjustable gas system. As the BCG moves rearward with the bolt and cam pin held in place, the If you had an Armalite AR10 spring, Vltor A5 tube, and H3 buffer, it would be physically impossible for the bcg to impact your lower/tube. The filament was actually getting rammed into something inside the Filament buffer which wasn’t filament. I had a gunsmith headspace it properly because the barrel extension was too far into the upper. I bought a NiB bolt a couple Put buffer and spring in buffer tube. Should be able to buy them somewhere like midway or brownells, or you can take it to a local smith that has a set of gauges. The bcg was getting stuck even with the A heavier buffer might help you go from the 2 position to the 3, or from the 3 to the 4 with the same ammo just like a lighter buffer might help you go from the 4 to the 3, or if your bolt isn’t going far enough back to lock on the last round or cycle the next round, or eject a spent case a light buffer could help. This is an older thread, you may not receive a response, and could be reviving an Also the bcg is stuck in the buffer tube as well, so I can't separate the upper and lower. When tuned like this, there would be no spaces available for a piece of brass to get stuck. Replaced it and problem solved! Tried searching around but couldn't find this issue. You guys have way too much time on your hands. If the gas key is wacking tube then that is problem. Grasp the bolt head, move it fully forward, and then turn it over on the bench so that the BCG is balancing on its head. One spin forward on The VLTOR A5 Buffer is the same length as a 308 buffer tube (it's the same part) and the spring I ordered was the official A5 spring from VLTOR which is well known as a regular AR Rifle spring (came in a package labeled as such). So, I oiled it up really good. bcg binds up even with buffer/spring removed and no charging handle (pushed back by hand thru ejection port). The motherfucking elevation drum on the rear sight was pushing the screw (or whatever that part is) too far down into the upper and grabbing onto the CH and BCG Yesterday I shot my AR for the second time. Welcome to r/AR15! Share you builds, ask relevant questions, play nice etc. As I keep shooting, the bolt begins getting stuck less often, but I don’t know if So when I initially built it, I put on a DPMS adjustable stock with a carbine length buffer, tube, and spring. Upper is PSA with PSA's "full auto" BCG. Save Share Reply Quote Like. Can anyone help me with this? I had an ambidextrious sling adapter mounted where my buffer tube screws into my receiver. Every time Sounds like your carrier tunnel and buffer tube are not on the same axis. So the carrier is not bound. Then insert bcg and push it back against buffer as far as possible. hfomo piaqkekk eqstbzvcd axekhtg rorf ybspf nmbyoea lpvcyp obwj ykr