Smith & Wesson M&P15-22 Sport Features The Smith & Wesson M&P15-22 Sport .22 LR operates on a reliable blowback system and features a 16.5 carbon steel barrel with a 1:15 twist rate optimized for rimfire accuracy. This .22 LR AR rifle includes a threaded muzzle with A2 birdcage flash hider for added versatility. Magpul MBUS front and rear sights provide adjustable aiming capability right out of the box. A slim polymer handguard with M-LOK slots supports accessory mounting while the Magpul MOE SL adjustable stock allows a customizable length of pull. The Magpul MOE SL grip enhances comfort and control and the polymer receiver keeps overall weight at just 5 lbs. Finished in OD Green Topographic Cerakote this model includes one 25-round magazine for extended shooting sessions. Smith & Wesson M&P15-22 Sport Specifications Manufacturer: Smith & Wesson Series: Sport Model: M&P15-22 Caliber: .22 LR Platform: AR Style Operating System: Blowback Action: Semi-Auto Capacity: 25+1 Barrel Length: 16.5 Barrel Material: Carbon Steel Barrel Finish: Black Barrel Description: Threaded Twist Rate: 1:15 Muzzle: A2 Birdcage Flash Hider Overall Length: 30.70 - 33.75 Receiver Material: Polymer Receiver Finish: OD Green Topographic Cerakote Handguards: M-LOK Stock: Adjustable Magpul MOE SL Stock Finish: OD Green Topographic Grips: Magpul MOE SL Sights: Magpul MBUS Front and Rear Weight: 5 lbs Magazines Included: 1 25-Round