Nearly 10 inches long, that is very large for a 22lr silencer. How wide is it? Hopefully not much more than 2.5 cm if you expect to use the original sights on the pistol and still see over the can. Can you measure the bore of the silencer with calipers and let us know what that it please?
That anyone would call a 22lr silencer that is greater than 10 inches long "the best in the world" is engaging in some serious hyperbole on their part.
Ranb