Model: M&P® FPC - Caliber: 9mm Luger - Capacity: 17+1 round Or 23+1 round - Action: Blowback semi-auto - Barrel Length: 16.25 (41.3 cm) - Rifling Twist: 1:10 - Sights: N/A optics-ready - Lengths: 30 3/8 unfolded (77.2 cm) 16 3/8 folded (40.6 cm) - Stock: Fixed 14.5 LOP polymer - Grip: M&P® M2.0® Compact-size grip - Weight (unloaded): Carbine Only- 5.03 lbs. (2280 g) w/17-rnd mag- 5.23 lbs. (2370 g) w/three mags- 5.78 lbs. (2620 g) - Barrel Material: 4140 Steel - Barrel Finish: Black Oxide - Bolt/Bolt Carrier: Stainless Steel - Frame/Receiver: Aluminum (tube) - Frame/Receiver Finish: Hard Coat Black Anodized - FEATURES - Compact folding design. - Optics-ready. - Integrated recoil buffer system. - Reversible magazine catch. - 30 3/8 unfolded length to 163/8 folded. - 1/2-28 threaded muzzle with thread protector. - Flat-face trigger with crisp break. - Compatible with M&P® Pistol double-stack magazines. - In-stock magazine storage w/quick-release tab system. - Horizontal folding mechanism with locking latch. - Horizontal folding design doesn't interfere with top-mounted optics (optics sold separately). - M-LOK® slots on handguard with Picatinny-style rail on top. - Charging slide/handle doubles as retainer when folded. - Carrying bag with additional storage and Velcro® straps. - Backed by Smith & Wesson's Limited Lifetime Service Policy. - Made in U.S.A.