<p>Caliber: .223 Remington. Operation: Direct Impingement Gas Operated with Rifle Length Gas System. Magazine Capacity: 30 Rounds. Overall Length (Collapsed): 35.00 (88.90 cm). Overall Length (Extended): 38.25 (97.15 cm). Barrel Length: 18 (45.72 cm). Barrel Muzzle Threads: 1/2 28 T.P.I. Weight w/o Magazine: 7 lbs. (3.18kg). Barrel Rifling: 6-groove, Button Rifled, 1 Turn in 8 (20.32 cm) R.H. Twist. Mode of Fire Options: Safe /Fire. All parts fabricated in the United States.The Colt Firearms CRP18CA Pro 223 Remington California is an ideal .223 caliber model of firearm to have in your collection. Besides its rather menacing look, you can count on years of dependable service. It is a fairly simple and uncomplicated firearm to operate and will give you high performance results. This gas operated rifle has an overall extended length of about 97.15 cm, where its barrel length alone is about 45.72 cm. All this adds to the stability of the firearm, which in turn will allow you to have a better shooting hold on the model. There is a 20.32 cm allowance given for the turn and it can be comfortably used if you are right handed.</p>