JG MP5 SD6, it's that kind of thing when a 16 year old thinks it's good to get any cheap gun to learn on but not when to get to the gearbox you'd have to disassemble every single part of the external build to get to the gearbox, then you'd have to reroute the tamiya connection around the whole body of the gun and under hop up whilst placing the hop and gearbox in at the same time. The motor wire's are just as annoying to put in. Getting to the gearbox took 40 minutes the first time.
After 30 hours later and a video I made to disassemble the gun (for the 6th time) it finally works, m120 with 2 teeth short stroked on sector and piston with a 13:1 gear set and a "high torque" motor which was a 16 tpa motor so speed one running with a 7.4v and around 280 fps on a .25. Correct motor height, correct shimming, perfect air seal and new hop rubber thanks to Foreign Commando Remi with the addition of Teflon taping the crap out of the hop, it finally works and sounds amazing and I never want to open it again but there is one problem, the top where a claw mount needs to go, it's a bit open but I can push it together but it won't stay together so I'd need a claw mount soon
