What's in the Box S&W M&P15 Sport III 5.56 NATO Semi-Auto Rifle (1) 30-Round Magazine Cable Lock Owner's Manual Built to perform under various conditions, the M&P SPORT III rifle is as versatile as it is reliable. Engineered for a wide variety of recreation, sport shooting, and professional applications. The new SPORT III offers more options to accessorize than the previous generations. Lightweight and rugged, the SPORT III embodies the best combination of function and form. Get unmatched value with the new M&P SPORT III. Firearm Features 16 barrel with a 1:8 twist 5R rifled barrel. Threaded barrel 1/2x28 15 free-floating M-LOK handguard. Mid-length gas system. 6-position adjustable stock. Ships with one 30-round magazine. Firearm Specifications Manufacturer: S&W Model: M&P15 Sport III Caliber: 5.56 NATO Barrel Length: 16" Twist Rate: 1:8" Finish: Tungsten Gray Magazine Capacity: 30 Rounds