Action: Semi-Auto - Caliber: 5.56 NATO - Capacity: 30rd - Barrel: 16 (1:9) CMV Heavy with A2 Flash Suppressor Manganese Phosphated - Receiver Upper: Forged 7075 T6 Aluminum Hard Coat Anodized - Receiver Lower: Forged 7075 T6 Aluminum Hard Coat Anodized - Stock: M4 5-Position - Grip: A2 Black - Handguard: 10 MLOK Free Float - Length: 32.62 - 36.37 - Weight: 6.55 lbs. - M4 feed ramps - Ejection port cover and round forward assist - Aluminum mag catch button - Aluminum triggerguard - Comes with 1 magazine.CA approved gun lock chamber safety tool