I used these rings to install a centerpoint 4x16 40 scope on my Marlin 795. I also used small lock washers when tightening them down. They are very secure and shouldn't move.They were perfect for the Marlin 22 semiautomatic.
Pros: Top quality easy instulation perfect fit for my 40mm scope
This review was written in the old system and had content requirements that are different than reviews written today.