I had to take apart as wasn’t working to find the slider had snapped along with plastic on wheel to had split , thankfully I had these from old gearbox and was able to get firing as gears are good,was going to complain but left too long before I tested
![[Nine Ball] Hard Piston Plus[For Tokyo Marui MP7A1 AEP Series]](http://www.sixmm.com/cdn/shop/files/NineBall_HardPistonPlus_ForTokyoMaruiMP7A1AEPSeries_1.jpg?v=1683553545&width=950)
![[Nine Ball] Hard Piston Plus[For Tokyo Marui MP7A1 AEP Series]](http://www.sixmm.com/cdn/shop/files/NineBall_HardPistonPlus_ForTokyoMaruiMP7A1AEPSeries_2.jpg?v=1683553544&width=950)