Extends the lower rail to 9.5 inches for additional mounting surface; Install in a minutes, minor gunsmithing required, does require removal of sling loop on the forward handguard cap; Includes one 2.1" KeyMod rail section; Features five anti-rotation QD sockets for push button swivels; Topcover features quality T-marked MIL-STD 1913 rails for lights, lasers and optics; Lightweight, rugged construction of 6061 aluminum, hard coat anodized for a lifetime of service; The highest quality, most affordable AK handguard on the marked; Made in U.S.A.; Black Finish