Cyma AK 74U great gun lots of accessories BUT Double feeding

Hello,

Upgrade AK74U

RIS,
Top Rail,
Zentico Replica Grip
Zentico Replica Flash light
Pressure switch
Charge handle
Gate NanoAAP Mosfet
Mapleleaf rubber and nub
Lipo Battery AK Stick battery
1 High cap
6 Mid caps ( 2 are missing their metal bottom but doesnt affect function and actually makes them quicker to draw )
( Red dot NOT INCLUDED )

Ran like a train at 1J but now double feeds. So I cannot confirm the fault or the current FPS.

So to be clear. If you are buying this, you will need to sort that part out.