I built/own 2 AR-10''s. My 308 rifle is no longer consistently ejecting the brass, and when it does, it is ejected out at the 2 o'clock position. (Over gassing I believe). Most of the time the shell case remains loose in the action with the bolt locking back and fall out the bottom with the Mag. when I hit the button. FWIW, I have a Syrac low profile adj gas block on a total of 4 rifles and 3 are working perfectly with the exception of this one.
I have been playing with the gas adjustment screw with little change other than when this is closed down, the action will not lock back. (Have been shooting this rifle as a single shot attempting to try and figure out the issue).
I did swap uppers with my 2 AR-10's (same lower) and the 6.5 CM upper functions perfectly with the lower locking back after the last shot and shell casings landing at the 4~5 o'clock position.
Any ideas on how to fix this problem?!? Thanks!
I have been playing with the gas adjustment screw with little change other than when this is closed down, the action will not lock back. (Have been shooting this rifle as a single shot attempting to try and figure out the issue).
I did swap uppers with my 2 AR-10's (same lower) and the 6.5 CM upper functions perfectly with the lower locking back after the last shot and shell casings landing at the 4~5 o'clock position.
Any ideas on how to fix this problem?!? Thanks!