Issue:
Bolt will not lock back on last round with suppressor attached. Bolt locks back just fine with no suppressor.
Factors:
-Using 55 Grain Privi Partizan 5.56
-Problem still exists in about 10 different magazines (steel and Pmags)
-11.5 Bravo Company BFH
-Fail Zero BCG with BCM Extractor upgrade.
-Vltor A5 Buffer with -3 Buffer.
-M4-2000 suppressor and AAC Brake
-AR Gas Vent Forward Assist
Any ideas?


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