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
![[G&D] DTW 6.03mm Inner Barrel with Hop-up Chamber[510mm]](http://www.sixmm.com/cdn/shop/products/5149_GD_DTW_6.03mm_Inner_Barrel_with_Hop-up_Chamber_510mm_1.jpg?v=1608101426&width=950)