I cought this on an episode of Columbo titled "Now you see him". It shows someone screwing a suppressor into a revolver. And no, it wasn't a Nagant. And by into, I mean he screwed it to the inside of the barrel and not to the outside. The first pic is with the suppressor, second pic as he was screwing it in. I had to rewind a pause the TV and took the pics with my phone. Enjoy.