Build list:
- Action army AAP-01 base
- CTM CNC Upper Receiver
- CTM Ultralight bolt system
- CowCow reinforced nozzle
- CTM 200% nozzle spring
- CTM CNC nozzle block
- CTM 180% recoil spring
- CTM CNC charging handle
- CTM CNC guide rod
- Maple leaf Autobot bucking
- CTM FUKU-2 lower
- CTM CNC grip panels
- CowCow steel hammer assembly
- CowCow adjustable trigger
- CTM M4 HPA adaptor
