$40
Tactical grip, made from rigid aluminum, mount type – quick-detachable Weaver rail. Usually such grip mounts on the bottom rail, but side rails also can be used. Provides solid grip due to checkering. There is plug-nut at the bottom. Compartment inside the grip is big enough for 18650 battery (for tactical flashlight). Plug is sealed so items inside the grip will be protected from the water.