Looks like the Russian VSS that shoots the subsonic 9MM / 7.62 9X39 round. but all the pictures I can find of it don't look like it has a detachable suppressor.
Edit:
I see urbanfuturistic probably got me again... It looks like the AS VAL and VSS are nearly identical.
Edit:
I see urbanfuturistic probably got me again... It looks like the AS VAL and VSS are nearly identical.