Apart from the obvious rails the thing that makes a sniper is the notch at the rear of the receiver which enables the mount to lock in. I assume WWA have had these machined in. I assume there stock may have come from Ryton Arms who I don't believe have any true snipers. I remember them saying that the rifles were a very slow moving stock item and they got more money selling the bayonets which came with them. I believe many went to the states.
I would love to have an operational SVT-40 sniper!!!
COL, U.S. Army (Ret.)