Bullgear CNC Upper Gearbox for AGM / S&T / Matrix MG42

The Bullgear CNC Upper Gearbox for AGM / S&T / Matrix MG42 allows the weapon to operate smoothly and reliably under high internal stress. This upper gearbox shell is designed to use standard Cylinder, piston, piston head and spring guide, excluding nozzle. Crafted from CNC steel this is a highly durable upgrade part which will last a long time! With such a strong gearbox you have more options for internal upgrades without worrying about parts being brittle and weak.

What is amazing about this upper part is that it will accept standard V2 (M4) gearbox Cylinders, Pistons, Piston heads and Spring guide, only the nozzle remains original. Being able to accept standard V2 parts drastically changes the suffering of unable to find quality parts to keep the gun running.

Items included:

1x Bullgear CNC Upper Gearbox for AGM / S&T / Matrix MG42