The DRS (Defendu Reflex Sight) is so versatile and effective at close range, and was designed to rapidly disable an opponent with potentially lethal force. Perfect for tactical operations or home defense, the 1x reflex sight offers three reticles calibrated for speed and accuracy at 7, 25 and 50 yards. Its illuminated C2 reticle has three options, Singe dot; Dot and stadia lines; Dot, stadia lines and close dot. The DRS features a rugged magnesium body that is water, fog, and shock proof, windage/elevation adjustable, and powered by two (2) AA batteries but can operate on one.