I have an Eotech, 512 on one. I hear Aimpoint is a lot better and maybe one day I’ll get one. The other is open sights. I like the open sights a lot. Normally open sights are for rimfire and levers. It’s a lot of fun with an open sight semi auto centerfire. I just ordered a Meopta 3-18 for the 24” Varminter upper I bought. That seems like it’ll be fun.