Well, Tony, that brings back memories ...
Obviously I've never been to South Africa, but Sterling and Uzi seem to share a lot. The clonging-option was not trained, but "my" Uzi worked very much the same way as afore mentioned Sterling.
And, as someone noticed before, the Uzi is not very "safe". Rumours about Uzis bursting their whole mag.-capacity after falling to the ground where common in the Bundeswehr. I can testify, that mine sometimes bursted all bullets out - although the safety clearly stood on "singe shot fire".
Nah, we had a lot of fun with them
