Great sight with one major exception - Barska 2x30mm IR Electro Sight Tactical Dot Rifle Scope AC11324

This is a very well made and thought out sight, with the one MAJOR exception. It has no index pin to align with the slots in a picatinny rail. Nor do the mounting screws index to the rail. I tightened it as tight as possible(without stripping screws), and after 8 shots on my Rem 870, the scope slid forward over 1/4 in.

This scope would probably do fine on a low recoil weapon, but not so on a 12 Ga.
Pros: Clear optics, bright Red Dot aux rails are a plus
Cons: No index pin for Picatinny rail

This review was written in the old system and had content requirements that are different than reviews written today.