This 9 Slot FDE/Tan M-LOK® Picatinny Accessory rail, mounts onto your M-LOK handguard it is a great rail because it features a rounded profile rail ends for less snagging a more comfortable hold when used as a hand stop. This rail is perfect for mounting gun accessories with Weaver-Picatinny mounts like flashlights and lasers to your M-LOK® handguards. This Medium rail covers 2½ M-LOK® slots. on your hand guard. Mounts with two KeyMod screws. Color is FDE/Tan rail is powder coated made from aluminum construction with 9 slots.