I've been looking for a new project of sorts and I had had kept this last  Commie handgun around just in case I ever wanted to suppress a revolver. What allows this revolver to be suppressed is the unusual "gas-seal" system and the cartridge itself. The "gas seal" system is where the cylinder moves forward when the gun was cocked, to close the gap between the cylinder and the barrel. The cartridge itself is also part of the gas seal system as the cartridge has the bullet loaded inside the case but the case itself goes over the bullet leaving space between the bullet and the opening of the cartridge. This was done to provide a boost to the muzzle velocity of the fired projectile (which is still under debate if it effectively worked or not) and it has the unusual property of allowing the revolver to be suppressed as there is an effective gas seal. With the exception of 1-2 more models that I am aware of made by S&W for the Vietnam War, this is it for a suppressible revolver. 

 My friend was over helping me thread another barrel for my Mosin Nagant Scout rifle (I can't wait to find the appropriate flash hider for this one) and he had his suppressors with him and he wanted to see if they would screw on ok or not. Well, they did and we took a couple of different pictures. The shorter one is the one I'm REALLY interested in as it makes the package portable. The only issue is that it has to be run "wet" to be effective. The longer one below is the one that can be used "dry". 

The Suppressors are Thompsons. I don't know the model numbers off the top of my head, but the Nagant barrel is threaded to the same pitch as an AR-15. The 9MM suppressors here can be used with the 7.62X38R ammo. Hopefully we'll shoot it later this week with both to see what works and what doesn't. Now the search for the right suppressor begins and this is where I'm going to do the Class 3 paperwork for a 9MM Suppressor. 

TJ