M-LOK RAIL FOR M-LOK COMPATIBLE HANDGUARDS, FORENDS & BUTTSTOCKS The BT73 M-LOKA(R) Rail is designed for use with all M-LOK compatible hand guards, forends and buttstocks. It has 3 usable slots for attaching any of our 1913 Picatinny rail mounted Atlas Bipods, Accu-Shot Monopods or Folding Foregrip. It requires standard M-LOK sized slots for mounting. Machined from 6061-T6 aluminum and Type III hard coat anodized. It comes with two 10-24 x 3/8 fasteners and two M-LOK nuts. Available in black only. SPECS Length: 1.575" Width: 0.835" Weight: 0.59 oz Mfg: Accu-Shot