Century Arms R1A1 Sporter, .308 Winchester cal. semi-auto rifle. Serial #01-017701. Excellent condition. 20" barrel has an excellent bore with strong rifling. Muzzle brake. adjustable post front sight and peep rear sight.Has a top receiver full-length picatinny style rail for optics. 95% matte blue (parkerized) finish with light wear. Black synthetic furniture is excellent. Comes with three 20 round magazines. Well built rifles that will reach out there.