It is a (hangs head in shame) DPMS Chrome (hangs head in even deeper shame) LR-308 bolt carrier.
I specifically pointed this out to my gunsmith, who answered that the staking looks fine to him. Am I just OCD, or is the staking actually insufficient?
Yea,it could be better,but big friggin deal !!! Either send it to someone who can stake it better for ya,that will give ya peace of mind I guess !!! Grant @ G&R would do it for ya I bet,or find somebody local !!! If it were me,pull the screws out,put a drop of Loctite on them,retighten and move on,hardly worth being concerned about !!! Back in the day before I knew shit about ARs,I use to take the screws out to clean it,:rolleyes::rolleyes: WTF was I thinking,LOL, a buddy saw me do it and asked what the hell are ya doing,your not supposed to take that off,:haha: !!! Anyways,cleaned the threads,a drop of red Loctite on each,reinstalled and years later and thousands of rds later its still going !! Don’t sweat it !! Well that’s my 3 Cents worth !!!
If you’re worried about it, a few smacks with a staking punch should put your mind at ease. They sell tools for staking at brownells but wouldn’t be necessary since the staking marks are already there, just need to make the top marks a bit deeper.
This was posted in the AR/M4 tech thread, not in the Beyond 5.56 forum. Hat’s off to you for latching on to the type of carrier pictured in the OP.
AR-10, no… SR-25/M110, yes.
If I’m not mistaken, the AR-10 uses the same gas key and screws (8-32 x 0.250) as an AR-15. 8-32 x .250 socket head cap screws are not as widely available (read more expensive) as the 9/64 variant. While a Grade 8 fastener can have a 9/64 socket, the socket on a Colt/FN/KAC gas key screw is 1/8, not 9/64 as pictured. The use of screws with a 9/64 socket is a cost cutting measure and the quality of the carrier assembly is further diminished by the lackluster staking.
