X Products Viper Free Float Rail System M-LOK Mounts 8.5 Inch Black

Light weight, free float, billet aluminum, modular mount AR-15 / M-16 handguard system. Versatile and attractive Viper Rail, gives the shooter a slim line handguard that easily allows a 360 degree grip around the circumference of the body for most hand sizes. System is has mounting locations on the 90, 180, 270 degree positions for the 8 inch unit, and has mounting at 0 (on the interrupted section), 90, 180, and 270 degree position on both the 12.5 inch and 14.5 inch rails. System mounts to any Military Standard barrel nut, and has two anti-rotation tabs to prevent the rail from rotating.