I have never posted before but I use to work at US repeating arms and ct shotgun. I believe even arts sent guns here to get work done to CSMC. I am now retired. I have fond memories of both places. And remember when CSMC would polish a gun, there are lots of tricks and techniques the factory uses. I don’t know how many other people have any of that equipment. Do you want it done correctly? Just my two cents. Jim.