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
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![[CYMA] M4 Hop Up Chamber[For Tokyo Marui M4 AEG]](http://www.sixmm.com/cdn/shop/products/CYMA_M4HopUpChamber_ForTokyoMaruiM4AEG_2.jpg?v=1640685226&width=950)
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