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Ultimate Complete Gearbox M4 High Speed (M100)

Ultimate Complete Gearbox M4 High Speed (M100)
Product Description

A full gearbox, fully upgraded.

Front wired complete gearbox:
M100 Spring
8mm Steel Bearings
Bearing Spring Guide
Aluminium Cylinder Head
Polycarbonate piston
Enhanced tappet plate
High performance gears (High Speed) (up to 35% less wear)
High grade low resistance wire

Ultimate Complete Gearbox M4 High Speed (M100) (1)

Nik Rowlands

Got one of these in my custom build m4 , cracking gearbox very reliable performance.  

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