The TangoDown Battlegrip AR-15 Pistol Grip is a soft curved grip with back strap that helps minimizes recoil discomfort. The texturing provides a positive non-slip grip even with wet hands. The weather-resistant grip storage allows you to securely store multiple batteries inside the grip. Made of an injection molded polymer. Includes foam battery spacers, stainless steel fastener, installation tool and complete instructions. The Battlegrip fits all M4/M16/AR-15 type rifles & carbines, and AR-10/SR-25/MK11 weapons.