Mepro OPMOD M21 Red Dot Sights Reflex HC Reticle Black 0

Mepro OPMOD M21 Red Dot Sights Reflex HC Reticle Black 0. The MEPRO M21 provides instant all-light aiming without batteries. Maintenance FREE No batteries No switches always on. Always ready. compatible with standard Picatinny rail. Tritium and fiber-optic powered that uses ambient light when it's available during daylight and unique Tritium light source system that ensure bright reticle in lowlight and night time. Transition between the two systems is instantaneous and automatic to assure good.