Carbine vs. Mid-Length Gas System: Which is Right for You?
Understanding the Fundamentals: How a Gas System Works How Gas Propels the AR-15 The gas system is the engine that drives the AR-15’s semi-automatic operation. When a round is fired, the expanding propellant gases created by the burning gunpowder need to be harnessed to cycle the action. The bullet travels down the barrel, and as … Read more