After the failure of an inferiror mount on my series 181 mini-14, I am trying this mount. After two matches it still holds zero. It has 3 attachment points which required precision installation, but I was able to do it. It bolts to the slide stop cover plate plus two hex screws contact the top of the receiver--a three point attachment. Hopefully this will be durable. I used lock tite on attachment screws.
Pros: Works, Holds zero
Cons: Durability unknown
This review was written in the old system and had content requirements that are different than reviews written today.