The Smith & Wesson® M&P15 is a quality AR-style semi-auto rifle, offered at an affordable price. The Sport II comes with a forward assist and a dust cover to enhance reliable function in rugged tactical environments. The upper and lower receivers are constructed from 7075 T6 aluminum with a hard coat black anodized finish. The upper has a full Picatinny rail, and the lower features an integral trigger guard. The barrel features a durable, corrosion resistant Armornite™ finish; and a 1 in 9" twist. The gas key, bolt carrier, and firing pin are chromed for reliable function and ease of maintenance. A 6-position telescoping butt stock allows shooter to adjust for the perfect fit according to stature or clothing. The M&P15  Semi-Automatic Rifle comes with a Magpul® Folding MBUS® rear sight and an adjustable A2 post front sight. The Smith & Wesson M&P15 Semi-Auto Rifle is compatible with most standard AR15 components and accessories.