The M&P15-22 SPORT features a 10-inch M&P slim handguard that incorporates the popular Magpul M-LOK 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 front and rear folding sights are lightweight and durable, further enhancing the performance and value of the new M&P15-22 SPORT.