Yep! Here's my 1941 Tula M1895 Nagant (which is currently up for sale in the C&R EE here).
It's an interesting design, and pretty fun to shoot. Both commercial and surplus ammo is still available out there.
It fires a 7.62x38R cartridge that is completely encased in the brass, with the bullet sitting below the level of the case mouth, which is tapered:
When the trigger is pulled, the entire cylinder cams forward up against the stepped portion at the rear of the barrel, which partially enters the front of the cylinder and seals against the case mouth. This removes any cylinder gap and results in a complete gas seal. When the trigger is released after firing, the cylinder cams rearward to remove the barrel from the cylinder and allow it to rotate freely.
As a result of this unique gas seal with no cylinder gap, the Nagant is one of the only revolvers that can be suppressed effectively.
(Not mine, unfortunately)
The main downside to the Nagant is that it has a very heavy double action trigger pull, like many milsurp handguns. But you can manually cock the hammer, and the single action trigger pull is decent.