black in colour, standard thread, so will fit your chrome.
If you know someone that lives near you attending CPPS tommorow, you could let him/her drop your marker off with me.
BZpaintball used to be the UK reps for the Regency Chrome so might be worth a try or else try http://www.oringmonkey.com/index.php?cPath=1_281 they are based in the states but come highly recommended.