LWRCI being known mainly for their patented self-regulating short-stroke piston system, has become one of the top ar-15 rifle manufacturers. Unlike many other manufacturers, much of the components in LWRCI rifles are made in-house with extremely high standards. Although they are known for their short stroke piston system, they are also manufacturing direct impingement rifles in addition to large frame AR’s chambered in 7.62x51 and 6.5 Creedmoor..