Videos tagged with MAS 49

The MAS 49 is a French semi-automatic service rifle developed to improve upon the MAS 44, featuring capabilities for grenade launching and optics mounting. Key design elements include an integrated grenade launcher with adjustable range and a side-mounted APX L806 scope. Internal differences, such as a heavier firing pin, were implemented for reliability with French military primers, though this can cause slam-fires with commercial ammunition.

This guide explains the internal mechanics of the AR-15 action, challenging the common misconception that it is purely a direct gas impingement system. It details how the AR-15 functions as an internal piston system, with the bolt acting as a stationary piston within the moving bolt carrier. This design, attributed to Eugene Stoner, ensures linear operation and reduces carrier tilt.