A combination vertical grip and illumination mount. Designed for used with a .75?, .825?, or 1? diameter rear-activated or wired switch flashlight/laser. Features a watertight storage compartment.Features:Combination vertical grip and flashlight mount;Fits .75", .825", 1" diameter light/laser;Lock-out switch prevents unintentional activation of light;Pressure pad wells allow light activation for RH operators;Watertight storage compartment