Main issue is battery type and life - OpticsPlanet Exclusive Sightmark 1x Mini Shot A-Spec Reflex Sight

This is a great little green dot, but my main issue is the 1632 battery, which costs about 4-5x a 2032 that most other sights use. This is also the only sight I have that uses 1632 batteries so it adds another line item I have to keep stocked for just this device. The battery life is also poor. I've had to change this battery many more times than another cheaper green dot that I use frequently with a 2032 battery. Otherwise, it's a good sight. Holds zero, is plenty bright in daytime. Haven't had any other problems with it.