Buffer Technologies offers a vertical grip that is designed to fit on all Mil-Std 1913 rail systems. This vertical grip is solid once installed on the rail, making the grip and rail feel as one. An internal storage compartment, which is diveable to 66 feet, will hold spare batteries or other needed items. A pocket on the side will accommodate a pressure switch to control the light or laser. The pocket can be filled using the supplied spacer if a pressure switch is not need.