Caliber: 5.56 NATO – Stock Walnut with Stainless Side-Folder – Front Sight Protected Blade with Bayonet Lug – Rear Sight Adjustable – Material Stainless Steel – Thread Pattern 1/2-28 – Twist 1:9 RH – Capacity 20 – Finish Matte Stainless – Weight 7.5 lb. – Overall Length 39.25 – Barrel Length 18.50 – Length of Pull 13.50 – Grooves 6 – Walnut stock features a stainless side-folder made from original Ruger casting tooling and an injection molded polymer pistol grip. – Simple rugged Garand-style action with breech bolt locking system a fixed-piston gas system and self-cleaning moving gas cylinder gives unparalleled reliability under harsh operating conditions. – Threaded barrel with factory-installed flash suppressor is cold hammer-forged resulting in ultra-precise rifling that provides exceptional accuracy and longevity. – Integral scope mounts machined directly on the solid steel receiver provide a stable mounting surface for included scope rings eliminating a potential source of looseness and inaccuracy in the field. – Accurate sighting system with ghost ring rear aperture sight and a non-glare protected blade front sight with bayonet lug. – Receiver is drilled and tapped for mounting the included Picatinny rail. – Also includes: Two nickel-Teflon® plated steel magazines.