Also yet, I've discovered another problem, when I select full auto it shoot while I hold it, when I release and try to shoot, it acts like on safe, and then again it works and then again it acts on safe, but interestingly enough, it happens when the battery is plugged in, when I disconnect the battery, and then try selector, it acts fine, it's weird...So I've disassembled again, and took pictures of the gears and shims under the gears, I'll be inspecting the inner barrel next.Okay, so I've took the inner barrel out, and it looks straight to me, so as the barrel looks clean, and the hop-up too, and, again, I've disassembled the gearbox, took out the gears to reveal the shim's health, took out the trigger unit, so what do you think guys ?
https://imgur.com/a/uefqNIE
https://imgur.com/a/BtPd7Gm
https://imgur.com/a/tQvORPn
https://imgur.com/a/7YX1K8g