Self - illuminating mako mepro m21 day / night reflex sight for fast, bright shots instant all-light target acquisition, no batteries needed designed through close collaboration with Israeli special forces, the mepro m21 uses a fibre-optic light-gathering system during the day, and self-powered tritium at night to ensure a bright aiming point around the clock. No fumbling with batteries or switches. Just lightning-quick, both-eyes-open targeting. Recruit yours for less heads up: Large 30 mm lens for a sweeping field of view, self-illuminating with seamless transition between fibre optic and tritium lighting for true 'round-the-clock targeting, bright, red-orange bull's eye reticle, mil-spec quick-release mounting system fits any pica tinny rail, battle-tested tough... Currently in use by the Israeli military, can work in tandem with a magnifying scope., Dust cover included. Order today warning: This item cannot be shipped to Canada. Please check your state, county and city laws for restrictions before ordering this product. Mako mepro m21 day / night reflex sight..