To be used with an hpa system f2, Reaper, inferno, f1, Jack, n7
Replaces the metal gearbox
See revo kit auto alignment system for hpa on Google
https://centrosoftair.com/kit-hpa-revo-kit-auto-aligning-reaper/auto-aligning-system-for-hpa-revo-kit/
https://www.youtube.com/watch?v=bvz5VlSG-do&ab_channel=CentroSoftairMorrovalle
Shipping possible 10€ extra
Payment on account or paypal account