Century Arms  Model Centurion 2000, .308 cal. semi-auto rifle. Serial # G002456. Excellent condition. German HK 91 parts built on an American receiver.  20” barrel with muzzle brake. Bore is excellent. Diopeter sights.  Finish is excellent at 98% matte gray. Green polymer plastic furniture. Really cool set up looks like an early G3! Includes eight (8) magazines, mag pouches and sling. These are a blast to shoot! They reach way out there and touch 'em!