Shopping Cart
This service include all the the following tasks done in our workshop.
- Unmount of the original GBB magazine
- Drilling a new hole for the new HPA fitting
- Modification of the original GBB magazine base plate
- Threading the new hole
- Installation of the HPA fitting with sealing product
- Cleaning the inside of the magazine
- Seal and working tests
- Price include fitting & work fees
- Choose your connector EU or US version
This mod cannot be purchased separately from a magazine, please contact us if you want to send us your own mags
