A red dot sight that works - Crimson Trace CT-RAD Open Reflex Red Dot Sight

After having the Sig RomeoZERO, I think I know what an sub-par direct-mount optic is like - this is a big improvement for not much more money. That being said, this optic has the freedom to be bigger.

First thing I like, the windage/elevation has big screws and click values. With the click, the screws should not walk under recoil. Because I shoot .22, I can't vouch for bigger cartridges.

second, there's 2 buttons to adjust brightness and they are on either side of the optic. easy to adjust in the heat of competition, and you really can't mess it up.

third, there is a battery hatch on top, which itself has a gasket. you can change the battery without having to re-zero the optic, and you need not fear it shorting-out in wet conditions. That said, I prefer the battery hatch on a Holosun.

Big lens, too.

3moa dot works nice on targets - it's my favorite reticle. For defense, you might prefer a 5moa dot or a big crosshair.

Only complaint: They should have put a rail adapter in the box. Then the buyer could then mount it to any handgun with a pic rail, without having to think about footprint compatibility.