Smith & Wesson M&P, Semi-automatic, Single Action Only Internal Hammer Fired, Full Size, 5.7X28MM, 5 Threaded Barrel, Optics Ready, No Manual Thumb Safety, Optic Height Sights, Flat Dark Earth Frame, Black Slide, 22 Rounds, 2 Magazines 14078 The Smith & Wesson M&P 5.7 will light up the range and quicken your pulse. With its rotating 5" Tempo Barrel System, the M&P 5.7 utilizes the ballistics of the 5.7 x 28 round in tandem with the repeatability of the Tempo System. Get worry-free consistency, in a 22 Plus 1 handgun. Take control and feel the fast!