Meprolight USA 56223090 M22 Bullseye w/MMX4 Magnifier Coyote Tan, Black 4x24mm, Picatinny Rail Mount

The battery-free Mepro M22 reflex sight is powered by fiber-optic illumination by day and premium Swiss-processed tritium vials by night. The transition between the two systems is instantaneous. Its rugged, battle-proven construction meets or exceeds rigorous standards to function in the harshest environments. The Mepro MMX4 micro magnifier is a compact, light weight magnifier that will extend the effective range of your red dot or reflex sight. it reduces the footprint, saving rail space and weight on your firearm.