I love seeing project guns like this, it really shows what people are capable of.
It might be perfectly safe, but I would definitely fire it from a vise just in case.
Figured it’d be a fun project, I made some changes, as I can use a mill, so the whole segmented bolt thing was unneeded. I got my dad to fold the receiver and weld on the mag well so I’d be all legal and such. It uses sten mags, has a modified AK fire control group, a luger barrel with a ring in it from a barrel wrench (I got it free at a gunshow), a fixed extractor, and a section of arc welding electrode as a firing pin.
Below are the plans he used:
More pictures and info at FAL Files Forum – HERE