chrisfc923

thx, its a mako g2 t-pod yep love the look. i switched from a magpul acs to this.

gas port was underspec... compared it to another barrel and def smaller. GS drilled a bigger hole and all is good!

Finally done and, with a month of figuring out my short stroking problem, finely fixed

I ordered mine from rog tactical is that a reputable dealer? My guns in the shop so i can't compare right now.

i bought one as well the same time I ordered the rainier arms raptor. I loved both but the rainier for me felt better so I ended up selling the BCM.

well its not gas tube... replaced it with a spikes melonite tube and still same issue. i just gave up and dropped it off at g&s hunters to try and figure out the issue. hopefully they can solve this

just decided to test the gas flow and blew compressed air into the gas tube from the upper side. air definitely was coming out of the connection between the gas tube and gas block. is that normal or is there an issue with either the seal of the gas tube or alignment of the gas block?

just ordered a new one... tubes only 3 months old and maybe 400 shots through it. can it really go bad that early?

both, i highly doubt its the bcg not sure if this is normal but there seems to be a lot of carbon build up around the gas tube by the gas block and around the roll pin area...

mobile one, but my bcg is niboron so i doubt lube is the issue now

I shot again today and first shot jammed but then the next 3-4 mags went flawless. then occasional jam again. this time though the jam is from the empty casing still being in the chamber. its not a lube problem as i just bought a niboron bcg and lubed that up. the one constant though was that the bolt doesn't lock back on the last shot which makes me think that maybe the bolt goes back just enough on most shots but has the occasional jam where it doesn't go back enough. that would explain why i can go through some mags without jamming. so without enough force bringing the bolt back what can it be? gas tube looks fine, gas block is tight. could it be a defective barrel in any way?

well turns out i still might have a gas issue... went to the range friday and same thing happened but not as bad as before. keep in mind I went to the range 3 times with about 175 rounds put through and didn't relube so maybe lube is still the issue but I doubt it. Fri it was shooting fine until about 20 rounds in and it started to short stroke again where the bolt wouldn't chamber the round all the way. Its not a clearance issue because when it happens I pull back the charging handle and let go and the bullet chambered half way chambers correctly. Only problems I can think of is #1 gas hole in the barrel isn't big enough causing restricted gas flow (doubt it but who knows), #2 the upper is still brand new and only has 175 rounds through it and needs to be broken in, #3 gas leak, #4 gun doesn't like the ammo (which i hope isn't the case since I want a gun to be able to handle anything) btw: bought a niboron BCG to hopefully avoid the lube issue if it really is that sensitive to hopefully get a smoother cycle but I'm going from a ar15 semi bolt to a m16 bolt which is heavier. hopefully it would make matters worse.

true, I actually tested it out myself as well yesterday and all is good! 60 rounds no hiccups. Vmastro87 has been great helping me out on this. Thanks everyone for their help as well

Well last night I lubed evertthing up and had vmastro87 help me out and took the upper out with him to the range with a magazine and some of the ammo I use. According to him it fired without a hiccup. So now that narrows it down to either the lack of lubrication when I shot or an issue with my lower. I guess I'll test it this week with my lower and hope that it was just the lube. If not I'm assuming its gotta be the buffer as thats the only thing I changed.

no other working ar but just tried the charging handle and seems fine. Its a bit harder but then again I replaced the stock mil spec one with the rainier arms raptor so thats prob why

i guess only way to test is to put everything back together, lube everything up good and shoot and pray for the best

me too, and in all honesty its probably not properly lubed. I used some cleaner lubricant to line the inside of the upper and the barrel but it was a light coat. Can that really cause a cycling problem though?

just tried and copper wire cleared through the barrel

nope, the gas tube on both ends though have carbon build up.

Also it will not lock the bolt on the last round

if there was a gas leak would i be able to see the carbon built up somewhere from just 60-70 rounds?

the gas hole is carbine length though not midlength

i didn't bend the L that long but I'll try now. Should it be able to go straight through?

I bend it at a L just long enough that it would go past the block and into the barrel and insert it into the hole at the bottom of the block. It clears both holes