The fully ready-to-mount Reinforced V2 Torus Gearbox from Modify is specifically designed for the M4 AEG serie .

Modify has poured many ideas into the design of this gearbox, making it a top spare and tuning part .

The openings in the Gearbox are intended for inspection and tuning purposes. With them Piston and Gears can be checked and serviced without having to open the Gearbox. Not only the Gearbox itself, but also the Gearbox inner parts installed by Modify-Tech have been improved.

Included in the set are:

• reinforced Torus Gearbox
• Torque Gear Set ( 21.6: 1 )
• cylinder
• Piston Head
• 8mm steel bushings
• cylinder head
• Anti Reversal Latch
• Tappet
• rotary spring guide
• Ultra Piston
• Nozzle
• Tuning spring S120 +

Fire Modes: Safe / Semi Auto / Full Auto