I am an avid gun shooter. I mounted these rings on my DPMS LR-308. When I mounted them, the head on all of the screws were made of very soft metal which made for difficult tightening. The threads and the heads striped out easily and resulted in me having to cut off the rings.
Pros: looks great.
Cons: allen screw heads and threads strip out easily
This review was written in the old system and had content requirements that are different than reviews written today.