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
![[MAG] High Silver Content Motor Brush Set [For Systema M4 PTW Series]](http://www.sixmm.com/cdn/shop/products/MAG_HighSilverContentMotorBrushSet_ForSystemaM4PTWSeries_1.jpg?v=1633410698&width=950)
![[MAG] High Silver Content Motor Brush Set [For Systema M4 PTW Series]](http://www.sixmm.com/cdn/shop/products/MAG_HighSilverContentMotorBrushSet_ForSystemaM4PTWSeries_2.jpg?v=1633410698&width=950)