Retro Arms CNC Gearbox Center Pin - AR15/M4
The Centre pin is a vital part to keep your gearbox aligned and steady, whether you're using a HPA engine in it or not.
These keep you gearbox even more steady in your body and keep it centralised
Standard Delivery - FREE on all UK mainland orders over £150
Retro Arms CNC Gearbox Center Pin - AR15/M4
Sale price£5.49
Regular price£5.99