Guarder Ball Bearings Spring Guide for Ver.7 Gearbox (M14) Material_Aluminum Taflon Grease

Taflon Grease

Marui's Adjustable HOP-UP System

8V Battery

Parts Reference Guide

Material: Steel/Aluminum

Guarder Ball Bearings Spring Guide for Ver.7 Gearbox (M14) Material_Aluminum Taflon GreaseGUARDER Steel Spring Guide with Ball Bearing For Marui Gearbox Ver VII Airsoft AEG 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 upgraded AEG to install this It also makes spring effectively spring back Backstop is specially equipped with Ball