The AIMWIN PN120 GR Open Reflex Sight is specially designed for pistols, featuring a 2 MOA dot. It is available with 11 brightness settings and multiple reticle options. Powered by a CR1632 lithium coin battery, it provides a max runtime of 10,000h. The side loading battery design allows for easy replacement, and thanks to a motion sensor, it will automatically activate and access the previous memorized brightness level when detecting any movement in Standby Mode. The durable housing is constructed from aluminum alloy A6061-T6 with a hard-anodized finish.