Black Rifle Arms C.A.P.S. External Piston Rifle - How to make a 7.62x39mm AR work reliably
This video details how to achieve reliable function in an AR-15 platform chambered in 7.62x39mm, addressing historical issues like feeding failures and light strikes. It highlights specific modifications including upgraded firing pins, heavier hammer springs, and specialized magazines. The Black Rifle Arms C.A.P.S. external piston system is showcased as a solution for adjustable gas management, crucial for diverse ammunition types and suppressed fire.






