Ebay sucks as well
I’ve bought a holster through Amazon lately.
BTW Glen’s Army Navy ( http://www.glensoutdoors.com/ ) has a pretty good deal on XM193. As I type this they have stock.
XM193BK Federal Lake City Tactical XM193 5.56 x 45mm 55 Grain FMJ BT - 1000 Rounds 1 $329.95 $329.95