Poor mans acog - Primary Arms SLx Series 2.5 x 32 mm Red Dot Sight

This sight reminds me very much of the Trijicon ACOG sight. It does not excel in any particular category but as an overall compromise it works very well.
Good things about it: field of view, clarity of the optics, works without batteries, adjustable focus, rugged design, and price.
negative things: overall size is big compared to newer compact prism scopes, vee is small and hard to shoot precise groups, stadia lines are approximate and not as accurate as mil dots.
Overall if you are looking for a low power optic for an AK or M4 style rifle and you plan on shooting steel rather than paper punching the smallest groups possible you will be happy with this product.