King Arms EG Spring Guide for V2 Gearbox (New Ver.)

Details

This reinforced Spring Guide replace the original Stock Spring Guide of Airsoft AEG 
This spring guide with Ball Bearing New Version is designed to minimize the load for the motor caused by the spring tension 
Especially important for upgraded AEG to install this 
It also makes spring effectively spring back 
Backstop is specially equipped with Ball Bearing to prevent Spring Tension build-up during Full Auto Shooting Mode. It greatly reduces the risk of spring breakage 
Recommended to use inline with Upgrade Spring 

As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed