[Hectic]

i dont think anything is wrong. At least not majorly.
especially in quick semi you will generate heat. Bad shimming. Motor height adjustment. a strong spring. Can all cause heat but "a little warm" is somewhat normal. I had badly.shimmed an m4 once and if you dummped a mid cap in semi in quick order the grip would be hot. Like almost too hot to hold.with.bear hands. in full auto it would.only.get warm. I reshimmed and.it was better. Still would get warm but not hot. 400fps 13:1 gears 11.1 1200mah lipo merf 3.2 was the setup