Double Bell AK74U

DB AK74U Has a few marks as expected from normal use. Internally has the following upgrades LiJung Brushless motor 29k with spiral pinion and bevel Perun V3 Hybrid ETU ZCI 13:1 Gears Short stroked 3 teeth Guarder V3 tappet modified to adjust the timing XT M120 spring @1.1J on 0.3 with the hop set XT tappet return spring SHS AK aluminium nozzle Cyma AK hop unit XT hop rubber and nub Stainless steel cylinder 3/4 port Externally has all the extras in the picture including genuine magpul stock, 5ku selector lever.