Gun laser sight - Red laser gun aiming sight - With pressure switch - Comes with wrenches - Powered by 1 x LR44 battery Red Laser Gun Aiming Sight with Pressure SwitchFEATURES:1) Shock proof2) Rain proof3) Fog proof4) High-durability aluminum alloy in black matt5) With mechanical aim6) Fast focus eyeball7) Beautiful complement Red Laser Gun Aiming Sight with Pressure Switch