I bought the wrenches that were reported to fit . They do fit very well .
Oh, and I was skeptical but I purchased a silencer for the Rex-P, and now it sounds like my 1911 or my C11. This makes it nice, and it looks like it belongs on it factory. The only thing I did not like about the silencer is the fact that the paint job did not cover the outlet. There is a 1/4 inch silver band flat on the face that would reflect light so easy and give away my position. I will have to see what I can find that may fix that problem.
What cal. do you have and who is making it quiet