The M&P15-22 SPORT features a 10-inch M&P slim handguard that incorporates the popular Magpul M-LOK(TM) system. The M-LOK system allows rifle owners to easily customize their M&P15-22 SPORT by adding accessories without removing the handguard. M&P15-22 SPORT owners have the option of easily mounting numerous M-LOK-compatible accessories or any number of Picatinny-style rail sections designed to accommodate other accessories. Smith & Wesson includes a 2-inch M-LOK rail panel with each rifle.The M&P15-22 SPORT comes standard with one of the most popular folding sights systems available for MSRs. The removable Magpul MBUS(R) front and rear folding sights are lightweight and durable, further enhancing the performance and value of the new M&P15-22 SPORT.Features: 18" Barrel .22 LR 2-Stage Match Trigger 10" M&P(R) Slim Handguard with Magpul(R) M-LOK(TM) Magpul(R) MBUS(R) Sights VLTOR(R) Fixed Stock Hogue(R) Grip Match-Grade Precision Barrel, Chamber and Trigger 2" M-LOK(TM) Rail Panel Included Functioning Charging Handle Shell Deflector 2-Position, Receiver Mounted Safety LeverSpecifications: Caliber: 22 LR Size: Rifle Capacity: 10 Action: Blowback Barrel Length: 18 Grip: Hogue Sights: Folding Optic Ready: Yes Safety: Thumb Safety Color/Finish: Black Barrel Material: 1137 CS Frame: Polymer Performance Center: Yes Number Of Magazines: 1 Width: 2 In Length: 37 In Height: 7 In Weight: 89.6 Oz