G&G PM4 ris problems

[CND_SNIPER]

This is my second G&G gun, i bought this one as a platform to upgrade. Ive had the gun for 5 days and used it twice in my backyard and at one war, But during the war i started having troubles in semi automatic it would shoot twice like burst fire, and in fully automatic i would press the trigger and let go and it would fire and additional 7-10 shots, does anyone know the problem and or how i can fix it?

Thanks

[HKGhost]

Your switch assembly contacts could have a build up of carbon from semi fire. Take a look at that and clean the contacts if it's black. Then install a mosfet to prevent it from happening again.

[CND_SNIPER]

Alright ill try that thanks