there are links in this thread to consolidate the reflector options that moderator007 researched for us
they work with the 219b options I enjoy
my personal general purpose grail is the sw45k and that link also lists a source for those
along with other parts useful in a TCR-1, including an XP compatible mcpcb, the driver that has a Strobe option, and a shorter clip. (though I respect your choice of a McGizmo option)
(I was not in USA in my youth, and missed the Spinal Tap experience. Thanks for supporting and contributing to this Stepless Rotary conversation. 
)