Mount is secured by a single screw that comes loose easily during firing. at one instance the mount came-off during firing while mounted on my .40 cal pistol. It damaged everything including picatinny rail, scratch my pistol and destroyed my reflex sight attached to it. The only thing that was not damage was the mount itself.
Pros: Strong construction
Cons: Could not handle recoil bigger than .22 caliber
This review was written in the old system and had content requirements that are different than reviews written today.