Fire Support

Guarder Enhanced Version 2 Gearbox

Special Super Reinforcing design
The Inside rail has been polished
100% Fits for MARUI AEG System Parts
6mm Bushing not Included
Weight: 350g
Color: Dark Grey Coating
Material: Zinc Alloy Metal

takes 6mm bushes

IMPORTANT

The NB52 gear box use Self tapping screw,but the part of the screw no screw teeth.so how to install

Self tapping screw in the no screw teeth? please following description.

Due to the screws will break,the screw cannot be forcibly locked at one time,

Slowly lock the screw a few times and then return it again and again,

The screw root and screw teeth will not break,if the screw is matched with the screw.