The Smith & Wesson Performance Center M&P15-22 Sport Threaded takes everything amazing about the M&P15-22 and adds a Vltor adjustable stock, a match-grade threaded and fluted barrel, Magpul MBUS flip-up sights, and a Hogue rubber grip with finger grooves. The M&P 15-22 also features a very lightweight, poly receiver group and free-float rail with MLOK slots. While most AR-15 inspired 22LR firearms lack some of the typical AR-15 functions, the M&P15-22 is one that actually mimics an AR-15 very well. With the included sights, this one is ready to hit the range. Performance Center upgrades Vltor adjustable stock with sling QD slot Match-grade fluted and threaded barrel Magpul MBUS flip-up sights Hogue rubber grip with finger grooves Lightweight polymer receiver group and rail Range-ready out of the box