praetorian2072 Posted June 1 Report Share Posted June 1 Has anyone converted one of the S5 UMP to select fire using HK parts kit? Quote Link to comment Share on other sites More sharing options...
Got Uzi Posted June 1 Report Share Posted June 1 Yes I have. If you have worked on the UMP/USC its not hard, but there are things that can be done to make it even better vs the half ass route. Reach out if you want some help with this. Quote Link to comment Share on other sites More sharing options...
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