M&P 5.7x28, 5" Barrel,Threaded Barrel, Optic Ready, Manual Safety Comes with Two 22 round Magazines Brand: Smith & Wesson Model: M&P®5.7 w/ Manual Thumb Safety SKU: 13347 Frame Size: Full Size Caliber: 5.7x28mm Internal Hammer-Fired Action: Gas-operated, Locked-breech Capacity: 22+1 Rounds Barrel Length: 5.0" (12.7 cm) Rifling: 1:9" Front Sight: Steel, White Dot Rear Sight: Steel, White 2-Dot -Drift Adjustable Frame Width: 1.1" (2.79 cm) Overall Height: 5.25" (13.3 cm) Overall Length: 8.5" (21.6 cm) Sight Radius: 7.125" (18.1 cm) Grip: Slim, textured Pistol Weight: 26.7 oz. (756.9 g) Magazine Weight: 3.2 oz. (90.7 g) Barrel Material: Stainless Steel Barrel Finish: Armornite Slide Material: Stainless Steel Slide Finish: Stainless Steel Frame Material: Black Polymer Features: -1/2x28 Threaded Muzzle with Thread Protector -Internal hammer-fired, gas-operated, locked-breech TEMPO barrel system (barrel doesn't cam open until bullet passes gas port). - Slim, optimally textured grip. - Flat-shooting 5.7x28mm centerfire chambering - Ambidextrous slide stop. - Reversible magazine release. - Slide cut for optics. (Optics ready slide) - Flat-face trigger for consistent finger placement allows for more accurate and repeatable shooting. - Picatinny-style rail. - Forward slide serrations. - Crisp single-action trigger break. - Accurate 1 in 9" twist barrel. - Comes with two 22-round magazines. - Backed by Smith & Wesson's Limited Lifetime Service Policy. - Made in U.S.A. Armornite finish is a hardened nitride finish that provides enhanced corrosion resistance, greatly improved wear resistance, decreased surface roughness, reduced light reflection and increased surface lubricity. Armornite is used on many S&W® and M&P® products imparting a high level of protection internally and externally where applied.