I needed quick release rings for a 10/22 TD as the supplied bag was too short to leave the scope installed. I also needed rings that would work on a low profile weaver base without the rings contacting the receiver. After several attempts with lower cost rings I broke down and ordered these. They solved the problem but the solution cost more money than I wanted to spend. For the money I expected the rings would be 100% flawless well they are not. They have small imperfections in finish that do not effect function in any way but for near $60 should be show quality. I also do not like how the rings split below center. The scope must be forced into the rings because of this. They do allow quick install and removal as the name implies and seem to hold zero as far as I can tell.