I’ve just bought these links. They are for the Flechette series of US experimental cartridges. The XM645 link is plastic and the other 2 are metal.
The XM216 & XM144 links came marked as such, however as far as I can tell they are the same.
Is it possible that the one type of metal link was made for both the different rounds or do I have 2 XM216 Links or 2 XM144 links ?