Sig Sauer MCX .177 Cal 90GR Co2 Powered 30 Rounds Air Rifle Color: Dark Earth Action Type: Semi-Auto OPERATING SYSTEM: 90 Gram CO2 (CO2 Not Included) CALIBER: .177 cal MUZZLE VELOCITY: up to 545 fps TRIGGER WEIGHT: 7 lb (31 N) STOCK TYPE: Synthetic ACCESSORY RAIL: M1913 SIGHTS: Folding MAGS INCLUDED: (1) 30rd Pellet Mag OVERALL LENGTH: 34.75 in (883 mm) WEIGHT: 7.35 lb (3 kg) Features: 18" rifled steel barrel Synthetic handguard Picatinny rail Tactical front grip Flip-up front and rear sights and more