Steiner eOptics Model 9072 - Mk4 Battle Weapon Mounted White Light LED LOW-PROFILE WEAPON LIGHTS  The specially crafted design is low profile and places the light close to the body of the weapon, nearly eliminating the rifle barrel shadow. IDEAL MOUNTING  Because the Mk4 weapon light mounts close to the body of the rifle, its user can enjoy enhanced weapon handling switchology. RELIABLE GUN ACCESSORIES  The Mk4 operates on two CR 123A batteries or one rechargeable Li-Ion battery, so you can be prepared at a moments notice. VERSATILE WEAPON ILLUMINATION  This battle light features a push-button or remote cable pressure pad activation and low-profile thumb screw mount and pressure pad. WARRANTY - Covers defects in materials and workmanship for 2 years from date of purchase. Warranty covers all night vision devices, laser aim solutions, beacons and lights. Valid in USA and CAN only.