This is a Type 3 AK47
Bulgarian Arsenal SLR 100H receiver with a Hungarian AK 55 mil barrel and train.
Rare and desirable gun.
I got an SLR95 in 1996 for $260 through ShotGunNews.
I wanted the milled receiver.
I made my own mods.... back when my machine shop was a bench vise, a drill press, and a grinder.
That AK made from a shovel impresses me.
https://imgur.com/gallery/TspVwAll I do is put new stuff on Rem700 and M70 actions.