*RXS-250 has a 4 MOA clear dot with 10 brightness settings, fully multi-coated glass*Retained Winding/Lift, Top Load Battery for Easy Replacement, Mounts to a Variety of Pistols, MSRs, and Shotguns*IP67 waterproof and dustproof, long battery life of 50,000 hours[REFLEX SIGHT] RXS-250 has a clear 4 MOA dot with 10 brightness settings, fully-multi coated glassADDITIONAL FEATURES Detented windage/elevation, top loading battery for easy replacement, mounts on an array of pistols, MSRs, and shotguns