Videos tagged with Straight-Line Geometry

This video explains the function and historical development of the AR-15's buffer system, tracing its origins to the AR-10. It highlights how the system, combined with a bolt locking into a barrel extension, allowed for lighter aluminum receivers compared to older steel designs like the M1 Garand, while managing recoil through straight-line geometry. The evolution from a one-piece bolt carrier/buffer to a separate assembly is also detailed, explaining its role in weight reduction and controllability.