Gas Systems Part 2: The BFG 50A MKII!
This video details modifications to the gas system cylinder of the Serbu BFG50A MKII rifle. Mark Serbu explains how to address issues with gas blow-by and piston return by modifying exhaust ports and the cylinder's end hole. The process involves CNC machining for precise port enlargement and hole sizing, aiming to optimize gas venting and piston operation.











