[Hectic]

The akm and 74 stock sits more flat ( even to the top of the reciver) the 47 isangled downwards without seeing pics of the stock and how it lines up sith the reciver you have i can only guess but id say the part that meets the reciver will need to be trimed to the correct angle and you may have to widen the slots for the mounting points and perhaps make some new holes.
That said it would be helpfull if you post some pics of the stocks end that attaches to the reciver and also show how it sits if you slide it on as much as itll go.
Include a few angles of it and some close ups of areas that dont line up corrdctly.
On top of that if its not a wood stock it will be harder to work with thats for sure.