I wouldn't do that before your gun comes in. I tried that on a couple of Soumi mags before I received the gun, 1 worked, 1 was scrap. Remember the magwells on the smiths are formed, not milled. They do vary. Every one of my soumi mags will not fit in a friend of mines smith, while his mags are to loose to lock up properly in mine.
YMWV![]()