Deep Fire Spring Guide with Bearing Ver III

Deep Fire Spring Guide with Bearing Ver III Deep Fire Spring Guide with Bearing This reinforced Spring Guide replace the original Stock Spring Guide of Airsoft AEG Full Metal Construction This spring guide with Ball Bearing 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 EIGHT Ball Bearing to prevent Spring Tension build-up during Full Auto Shooting Mode. It greatly reduces the risk of spring breakage Suitable for Airsoft Electric Gun AEG Gearbox Version 3 Gearbox. Recommended to use inline with Upgrade Spring