Originally Posted by Kai

Simple answer: no. There are manuals showing how to do it, but you shouldn't try. The SKS-M and SKS-D rifles where given new trigger housings with a paddle-type magazine release like AK's. A few US conversions and gunsmith specials retain the normal sliding latch mag release which causes problems and and be hard to work with.

To do the conversion right you need to machine the receiver and get one of the paddle release trigger groups. This is why SKS-M's like mine sell in the $350-450 range (I was lucky and got mine for $175.)