GEARBOX VER.2 QUICK SPRING CHANGE WITH BEARINGS 8mm KING ARMS (KA-GB-43)

King Arms Ver2 8mm Quick Spring Change Gearbox
Zinc Alloy Construction Version 2
Essential part for upgrading your AEG Electric Airsoft gun
To build a tight and strong gearbox
Quick spring change system
8mm gearbox (6 pieces) Upgraded gearbox
With Metal Spring Guide
Suitable for AEG M4 / M16 Series Airsoft Electric Rifle

As always, AEG update requires the skill and technique needed to disguise the reducer, consult the expert if necessary