Here I have my custom mags gearbox. This took me over 10 hours to tune, modify, and complete. It was a real struggle, but totally worth it! It was genuinely built for semi, and I think I accomplished that. The full auto is also pretty good. I don’t have a chrono, but I’d say it’s around 30-34 rps. Anyways, here’s the parts list: Full metal V2 gearbox Full metal Bushings M100 Spring? (Somewhere around that area) Full metal spring guide with bearings SPEED tunable trigger Gate ASTER V2 Rear Wired mosfet 18:1 Balanced gears JG metal tooth piston Stock Cylinder Upgraded Cylinder head (Idk what brand. It has some sorbothane pads up front that I added) SHS reinforced tapped plate Metal Air Nozzle Modifications/tuning: Re-shimmed AEO corrected Lower gearbox shell, shaved metal gearbox “clickers” as I call them Lower gearbox shell, shaved area around trigger contacts Upper gearbox shell, shaved area around trigger contacts. If you have any questions, concerns, or you just want more pics/a shooting video, feel free to contact me. I’ll try to reply ASAP, and help you what whatever you need. I’ll cover shipping, you get PayPal fees.