Just get a romeo 5 for a couple bucks more - Swampfox Liberator 1x22mm Red Dot Sight

The good: build quality is solid. Decent mount with 2 mount height options. Takes common 2032 batteries. The bad: very noticeable refresh rate, that can be distracting. In order to be daylight bright, you need to crank this thing up to max brightness, draining your battery. No shake awake, only 3000 hr battery hour advertised life, as opposed to the Romeo 5s, I believe, 10k hr advertised life. Also there’s a huge emitter blocking a bunch of your sight picture. I can’t recommend this sight at all when comparing it to the ultimate budget optic, the sig Romeo 5, which is only like 10-20 bucks more and has a better emitter, no refresh rate you can notice, better battery life, no giant emitter blocking your view and so on.