This M&P15 features a 16-inch barrel with chrome lined bore, chamber, bolt carrier, and gas key. The rifling twist is 1:9. The flash suppressor is the A2 military style. The upper and lower receivers are fabricated from 7075 T6 aluminum, manufactured in the U.S. by an independent contractor to Smith & Wesson's specifications. The machining, assembly, and final fit matching of the parts are done by hand in S&W's plant.
Action : Semi-Automatic
Caliber : 223 Remington/5.56 NATO
Barrel Length : 16.0"
Capacity : 30+1
Trigger : Standard
Safety : Lever
Stock Description : 6-Position Black
Metal Finish : Black
Muzzle : A2 Flash Hider
Receiver Material : Aluminum
Sights : A2 Front, Folding Rear
Barrel Description : 4140 Chrome Moly Chrome-Lined