How Does It Work: Direct Gas Impingement
This guide details the operational mechanics of Direct Gas Impingement (DGI) as demonstrated on the French MAS 49/56 rifle. It explains how gas is tapped from the barrel, travels through a tube, and directly acts upon the bolt carrier within a blind hole. The explanation contrasts DGI with gas piston and blowback systems, highlighting its unique locked breech operation. Instruction is provided by Ian McCollum, offering a high level of technical authority.











