TGR
Active Member
New 300 Blackout build with Aero Precision Upper/Lower, BCA Barrel, and Prime Weaponry BCG.
When I check headspace with Clymer Guages it will not close on the GO or the NO-GO gauge. The bolt closes with resistance on a factory round but leaves marks (not dents) at the shoulder.
I swapped the BCG with a Bushmaster BCG from my competition gun. Everything works perfect. Closes on the GO, doesn’t close on the NO-GO and closes normally on a factory round.
Should I return the BCG? Will it break-in after a short period of shooting?
Suggestions?
When I check headspace with Clymer Guages it will not close on the GO or the NO-GO gauge. The bolt closes with resistance on a factory round but leaves marks (not dents) at the shoulder.
I swapped the BCG with a Bushmaster BCG from my competition gun. Everything works perfect. Closes on the GO, doesn’t close on the NO-GO and closes normally on a factory round.
Should I return the BCG? Will it break-in after a short period of shooting?
Suggestions?