Short rail covers 1½ M-LOK slots or 3 KEYMOD slots. Mounts with two custom designed T-nut screws that are M-LOK & KEYMOD compatible. Bottom of the accessory rail has custom machined lugs to lock the accessory rail from moving forward or aft on the M-LOK & KEYMOD slots. Tapered profile PICATINNY rail ends for a more comfortable hold when used as a hand stop.