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
![[E&C] HK416 Airsoft AEG Butt Stock [For Tokyo Marui M4 / HK416D AEG Series]](http://www.sixmm.com/cdn/shop/products/E_C_416FactoryGermanE1RearAEGStock_BLK_2.jpg?v=1629200386&width=950)
![[E&C] HK416 Airsoft AEG Butt Stock [For Tokyo Marui M4 / HK416D AEG Series]](http://www.sixmm.com/cdn/shop/products/E_C_416FactoryGermanE1RearAEGStock_BLK_1.jpg?v=1629200389&width=950)