Any help identify these please?

[carbon337]

From where though, I can only find aftermarket ones. I suspect that's because they have discontinued the gen1. I did read that you can use a gen3 but they can rattle

 

[TheStig]

Custom Cuts would be an option.
@Chris A Hardaway would be able to help.

 

[Lexkempo]

From where though, I can only find aftermarket ones. I suspect that's because they have discontinued the gen1. I did read that you can use a gen3 but they can rattle

I have gen3 in my gen1 and have never had an issue.

you can always give it a try