Gel Blaster Toy Gun Accessories Upgrades NO.2 Metal Gearbox Metal Shell Super High Speed Withstand Higher FPS FOR HK416
parameter:
Gear box housing
8MM bearing
Metal trigger
Metal top
Metal T tube
parameter:
Gear box housing
8MM bearing
Metal trigger
Metal top
Metal T tube
Metal gear
Metal cylinder
Metal rubber stud
Upgrade spring
Upgrade cylinder head
38000 high speed motor
parameter:
Gear box housing
8MM bearing
Metal trigger
Metal top
Metal T tube
SHS metal gear
Metal cylinder
Metal rubber stud
Upgrade spring
Upgrade cylinder head
45000 high torque and high speed motor