The CMMG Endeavor 300 is a direct-impingement semi-automatic rifle chambered in .308 Winchester with a 16-inch barrel. CMMG's proprietary Mk3 receiver set provides the foundation for a reliable carbine-length .308 platform designed for law enforcement and civilian use. The Endeavor series represents CMMG's mid-tier offering between the budget SV and premium MkW platforms. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester Capacity: 20 Year introduced: 2013, USA Weight: 118 oz Overall length: 36.5" Status: Active Intended use: Patrol Rifle / General Purpose