The Meprolight MPO-F Green 3/33 MOA Bullseye Open Pistol Sight is a versatile reflex optic featuring a user-selectable green reticle system with a 3 MOA dot, 33 MOA bullseye, and 33 MOA ring to suit any shooting scenario. Mounting via the standard RMR footprint, it offers 12 brightness levels including 2 night vision-compatible settings, Shake Awake technology, and a convenient side-loading battery tray for tool-free CR1632 swaps. At just 1.40 oz, IPX7 waterproof, and backed by Meprolight's MEPROGUARD Warranty, this sight is a lightweight, battle-ready upgrade for any pistol.