amoebicmagician
Samopal Goblin
Careful! Many of the ones sold w/ the skeleton stock and 10-rd mags are single stack and can NOT accept the 30rd mags. (There are 10rd double stack mags but rare.) I have no idea what it takes to convert one to double stack but its probably not worth the hassle given the price (machining for sure, new bolt?, other parts?)
Same bolt, but it's a pain in the ass for sure.
Unless you're very good at what you're doing you'll end up with sloppy mag fit and a magazine that wobbles all over the place.