The Alpha dot sight gives you a competition-ready open-emitter reflex sight thats big on performance without breaking the bank. Designed to fit optics-ready holsters, this red/green dot sight offers you faster target acquisition with a large window featuring a 65 MOA circle and reliable precision from the 3MOA center dot. Featuring adjustable brightness, ten brightness settings, and a battery-extending low-power mode thats canceled instantly using our shake-to-awake technology, its the right choice for your duty or personal protection weapon.