Want to mount a red dot on your pistol, but don't have an optics-ready slide? No sweat! The Meprolight Mepro MicroRDS Red Dot Sight Kit allows you to mount (and dismount) a red dot on almost any pistol with a removable rear sight, without drilling and tapping your slide. This kit features a Meprolight TruDot illuminated sight that serves as both a night sight and red dot adapter mount, allowing you to easily switch between iron sights and a mounted red dotwithout re-zeroing each time. Featuring a 3 MOA dot reticle and a large viewing window, this red dot kit ensures rapid and intuitive target acquisition in virtually any environment. Powered by one CR2032 battery (included), this red dot kit boasts a long-lasting battery life, while the self-illuminated iron sight/mount offers up to 10 years of reliable performance without any batteries. What's more, this red dot fits rifles, shotguns, and pistols, making it a reliable, 1-size-fits-all tool! Fits pistols, rifles, and shotguns Meprolight TruDot self-illuminated sight serves as red dot adapter mount 3 MOA dot reticle Powered by one CR2032 battery Fits most pistols with removable rear sight