Sockets for Quick Disconnect (QD) sling swivels located at the muzzle end of the handguard allows for comfortable carry with a two-point sling. The rifle-length gas system features a 0.750" 4-position rotary-regulator gas block to achieve ideal function across the wide range of ammunition available in the marketplace today. The included, on-board 3/16" ball-end wrench makes for easy regulator adjustment. Equipped with a Ruger Elite 452 trigger that delivers a smooth, crisp 4.5-pound 2-stage trigger pull. A full-strength hammer spring and lightweight hammer ensure fast lock times and consistent primer ignition. Made from a 7075-T6 hard-coat anodized aluminum forging, the upper receiver is complete with brass deflector, forward assist, and full-length Picatinny rail. The lower receiver features a generous flare on the magazine well for easy magazine insertion. UPC 736676056101 Action SEMI AUTOMATIC Barrel Length 16.1 BARREL Caliber .308 WIN Capacity 20 ROUNDS Finish BLACK HARDCOAT ANODIZED Weight 6.8 LBS. Receiver Material 7075-T6 ALUMINUM