Just a note to say to check with Alan first re:the cylinder being used in another Armscor.
When I spoke to him about this in the past, he said that each cylinder is unique to the particular pistol and shouldn't be used in another (he said that when he provides multiple cylinders they are all made bespoke to the end users pistol)
Having said that, what Alan says does seem to be a little... Fluid sometimes so I may be wrong but for safeties sake, worth checking.
It's all forgotten now, but Rockers and Mods only started fighting as the Rockers were annoyed at having some of their comments removed