Centurion Arms Enhanced Polymer Forgrip M-LOK (Black / FDE)The CM4 FM is an affordable, compact and light weight vertical foregrip that easily attaches directly to M LOK compatible hand guards. Made from high quality polymer, with comfortable rounded edges but an aggressive texture, this sturdy little VFG will give you the control youre looking for. All hardware necessary for attachment directly to M LOK Slots is included.