Sci-fi airsoft ak

Functional 3d printable airsoft ak body kit with folding stock. Uses standard airsoft ak internals. Includes stl and step files. Takes about 1kg of material to print. I desingned the model with 0.25 mm tolerances between each part. Everything can be printed on 220x220 bed. 
Necessary nonprinted parts
-complete ak gearbox
-threaded outer barrel (min170mm)
-150mm of 19 mm pipe
-1m of 4mm threaded rod 
-two 7mm springs with length while compressed of 6mm
-complete ak hop up/inner barrel assembly
-charging handle guide rod and spring
-some random screws
-2 pcs m5 45mm bolts