Real Sword Stainless Bearing Spring Guide - For RS T3 gearbox

- To build a tight & durable gearbox
- This reinforced Spring Guide replace the original Stock Spring Guide of Airsoft AEG
- This spring guide with Ball Bearing is designed to minimize the load for the motor caused by the spring tension
- Especially important for replace AEG to install this
- 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
- As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed