I would also be interested in this. I contacted IGB about this a few months ago, and they said that you have to buy them from their retailer in the US:
24hour tactical / John Yuzamas
Auburn Washington
Email:
john@igbaustria.com or
john@24hourtactical.com
Phone: 253 380 0330
Have been eyeballing their 9x19 barrels, but I would really like to hear from someone who has bought it first. $299 plus shipping is pretty darn expensive, so it better work.