Yes Sam. It's a flat sided nipple in the shape of the slot that it fits into. Nowadays, modern cables just seem to have a ball shaped nipple fitted. Works just as well though.
Ron %%htmlItem_1%%
I haven't checked Sam, but I suspect that these would have to me made, and since the cable guys can use something else off the shelf that works ok, I doubt they see a need to bother. Someone might have them of course. The ball end nipples are slightly easier to fit as you don't have to line them up like the genuine nipples, which can be a bit fiddly depending how the mag is situated. Ron