AR Sponsor
Posted: 5/1/2014 6:54:39 AM EDT
|
This is my first pistol build, but I have many other AR platform rifles.
So here's a list of the parts pertaining to my issue: Noveske 10.5" 5.56 Barrel WMD Guns Nickel Boron X Bolt Carrier Group Phase 5 Tactical AR-15 Pistol Buffer Tube Complete Assembly KAK Industries 1/2-28 Flash Can Magpul Gen M3 PMAG The pistol fires great. Not a ton of recoil and very consistent. It cycles rounds manually just fine, but will consistently not strip new rounds off the magazines. The rounds eject consistently at 2-3 o'clock. I've tried a few different kinds of quality .223 rounds as well as some 5.56 rounds. Same exact result. Tried a few different types of magazines with the same result. I originally ran it mostly dry with minor lubricant on a few parts, but not really on the BCG, then tried liberally lubricating everything. Same result. So then I manually cycled 300 rounds through it and still had the same result. All that being said, I bought my can in September and am still waiting on the stamp to come back. Hopefully it will be any day now. So if this could possibly be a gas issue (over or under?), will adding the can to the mix hurt or help the predicament? I haven't really worried too much about it since I think the can will change the dynamic of the gas situation, I just don't know for sure or in what direction. So should I wait until I get the can and then reassess? Or should I pre-emptively start looking at other things? http://i40.photobucket.com/albums/e229/TotalDisarray/IMG_1590.jpg |
| If the bolt locks back on an empty mag then try a heavier buffer. I have the same Noveske 10.5" barrel I built into an SBR. I am using an H3 buffer and probably could go heavier, especially when the suppressor is on. I never had issues with it running with a carbine buffer though other than throwing brass at 1 o'clock. |
|
Quoted:
Does the BCG consistently lock back when the mag empties? Sorry, completely forgot to add that the BCG does NOT lock back after the last round. I test that multiple times. It does lock back if I manually cycle it without any effort. Meaning, no extra resistance to get it to lock, smooth sldiing all the way back until the click of the lock is heard. I'll try all the other suggestions and check back. Thanks for all the advice. I also have another BCG I can try just to see if that makes any change. |
|
Quoted: Sorry, completely forgot to add that the BCG does NOT lock back after the last round. I test that multiple times. It does lock back if I manually cycle it without any effort. Meaning, no extra resistance to get it to lock, smooth sldiing all the way back until the click of the lock is heard. I'll try all the other suggestions and check back. Thanks for all the advice. I also have another BCG I can try just to see if that makes any change. Quoted: Quoted: Does the BCG consistently lock back when the mag empties? Sorry, completely forgot to add that the BCG does NOT lock back after the last round. I test that multiple times. It does lock back if I manually cycle it without any effort. Meaning, no extra resistance to get it to lock, smooth sldiing all the way back until the click of the lock is heard. I'll try all the other suggestions and check back. Thanks for all the advice. I also have another BCG I can try just to see if that makes any change. ETA: Your BCG may just be tight in the upper and needs to be cycled a couple of hundred times...
|
|
Quoted:
If it's not locking back, you're most likely undergassed or the combination of the BCG, buffer, and buffer spring is too heavy. The first thing I would do would be to check the gas block alignment again... ETA: Your BCG may just be tight in the upper and needs to be cycled a couple of hundred times... Quoted:
Quoted:
Quoted:
Does the BCG consistently lock back when the mag empties? Sorry, completely forgot to add that the BCG does NOT lock back after the last round. I test that multiple times. It does lock back if I manually cycle it without any effort. Meaning, no extra resistance to get it to lock, smooth sldiing all the way back until the click of the lock is heard. I'll try all the other suggestions and check back. Thanks for all the advice. I also have another BCG I can try just to see if that makes any change. ETA: Your BCG may just be tight in the upper and needs to be cycled a couple of hundred times... But the thing is he's already has a 3.0z buffer. That is a LIGHT buffer.. not a heavy one. A heavier one I would think would make the problem worse. Which makes me lean towards gassing. |
|
One of the things i was shown when troubleshooting my own cycle issues was when you shoot the rifle you should bench it then take the "best camera" you have avalible and video it cycling. i know most people dont have high speed cameras but do the best you can and just have someone film the action while your shooting it , keep the pistol in the same spot clear the failures and just do this over and over and over. then examine your video and spend time looking at it. it can show you alot. you might be bolt over base , in which case as said above look at spring and weight's or your bolt face might not be stripping rounds properly.
either way , this can help you determine whats up |
AR Sponsor