WE Katana cylinder + standard V2 gearbox DIY

This is a Katana cylinder combined with a standard V2 gearbox. I wanted to see if this would work, and it did. If you have any further questions about this or anything airsoft related, feel free to ask. I recently received parts for the gbbr HPA build so i believe that video will come up next If you want to help me out and increase the video flow please like, comment, share and favorite. And ofc subscribe if you haven t already br, br,