M-LOK(R) Single Slot Covers installs into individual M-LOK(R) slots for making M-LOK(R) handguards more comfortable and to insulate the shooter's hands from the heat of the barrel.Made from rubber material that is textured to provide a comfortable and sure grip surface.Very easy to install. Lift rear hinged half and slide the front shoe into the M-LOK(R) slot, press down on the rear hinged section to lock the M-LOK(R) cover in place.Heat resistant material will insulate the M-LOK(R) handguard from rapid sustained semi-auto fire.Available in 4 colors: Black, Tan, Green, Urban Gray.Length: 0.8Height: Adds 0.15 above the M-LOK(R) handguard surface.The M-LOK(R) Slot Covers come in a pack of 18 each.US PATENT No. 9581412