The LWRC M6IC is a piston-operated AR-15 with an individually calibrated (IC) piston gas system, allowing the operator to adjust gas flow for suppressed and unsuppressed firing. Predecessor to the IC-A5 with the same LWRC piston architecture. Type: Semi-Auto Rifle Action: Piston-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 2009, USA Weight: 7.4 oz Overall length: 35.5" Status: Active Intended use: Patrol, Tactical, Range