The SOLGW NOX is a .300 Blackout rifle built to the same exacting standard as the M4-89, featuring SOLGW's NOX muzzle device which serves as both a flash hider and suppressor mount. Type: Rifle Action: Semi-Automatic Caliber: .300 Blackout Capacity: 30 Year introduced: 2015, USA Weight: 66 oz Overall length: 34" Status: Active Intended use: Tactical, Hunting