Aim g.box hi torque 8mm w/torque motor for m4 (m120)

New reinforced model available
extreme hi torque with m120 spring
8mm ball bearing
all metal internal parts
wire on front for handguard
hi torque motor included
to use with hi power and capacity batteries

INTERNAL PARTS INCLUDED 
- steel gear with self adjustable shims and delayer cam 
- steel teeth piston with polycarbonite piston head 
- steel made cylinder head 
- hi pressure aluminum cylinder 
- 8mm steel ball bearing 
- steel spring guide with bearing
- pvc seal nozzle 
- low resistance silver coated wire set