Cheap sight

[pns112500]

Looking for a red dot sight to mount on the 45 degree off the mouse gun. Has anyone tested the cheapies that are out there? I looked in reviews, But no dice.

[[486]]

Bought one of these, and it looks really solidly built. The "blemish" they mention is that the screws in the bottom go all the way through the case, so you have to seal them with threadlocker if you want it waterproof.
http://www.primaryarms.com/product.sc?productId=303&categoryId=5

Though I haven't shot with it yet, so I have no opinion on the zero holding capability.