Fully transferable and civilian legal to own.  This gun is built on a registered Valmet M76 receiver with a IMI Micro Galil parts.  
Video https://youtu.be/Wc8bP8wAmKs?si=evh6a5t7HX7ILW1O 
Caliber: 5.56x45mm / .223
Model: 6399 (extremely rare in US)
Machine gun maker: Center Firearms Co, New York, NY
This gun is on form 4 in Florida.  On ATF approval it will transfer directly to your SOT or to you if you are a Florida resident.  All NFA rulles apply 
AK47, AK 47, AK-47, AK 74, AK74 AK-74