The Smith & Wesson M&P15 MOE SL is a factory-configured AR-15 built with Magpul MOE furniture including the Slim Line handguard, MOE pistol grip, and MOE stock. The 16-inch barrel with 1:8 twist rate stabilizes a wide range of projectile weights from 55 to 77 grains. The slim handguard reduces weight and improves grip for running the gun quickly in hog enclosure situations. Smith & Wesson's M&P15 series has been adopted by numerous law enforcement agencies and is trusted by American hunters. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2014, USA Weight: 103 oz Overall length: 32" Status: Active Intended use: hunting, hog_hunting, duty, general_purpose