Hey Q*Bert, thanks for the message.

Does your TC2 machine look like this?

If so then I don't think it will have them. I thought it may possibly have them embedded inside the large plastic housings but I have just looked through the TC2 manual and I can't seem to see them or see reference of the 45000199 part number for them.
The holster pictured im my original post is one I got from a machine that had been converted to the first Time Crisis. The same holders are also used on Point Blank machines. If you machine is a conversion then it may very well have them.
Let me know if you think you have those ones. I only need one but if you don't want to split them then I understand.
I would need it/them shipped to the UK. They will most likely need grit blasting and respraying, mine does at least anyway so I'll need to take all of this into account vs buying some new from Namco UK.