Did i get the right one? - Tactical Solutions X-Ring V-Block Upgrade for Ruger 10/22

Not sure if I ordered the right one for my 10/22. I used this with Tactical Solutions x-ring open sights fluted barrel. After a lot of sanding on the barrel shank to get it to fit, this v-block was nowhere close to fitting. I had to file it down on the "up" side significantly. I just may not have realized that these were such "precise" parts and require the final bit of fitting. With my very limited gunsmithing skills, I got both to fit and the rifle went together. I would recommend this part as I did not try another brand to see if that needed to be fitted too.