Don't buy Comp-Tac. Their customer service is the worst I have ever seen... I would be happy to post the emails back and forth between David Wisby and I if anyone doesn't believe it... Pick another brand....
I had an issue with a holster for my STI Spartan last year, it simply did not fit correctly. They took it back and "reworked it" and it still didn't work right. They finally took it back and gave me my money back. While I wasn't happy that they couldn't make it work their customer service was great. Jennifer Berglund was great to deal with. They paid for all the shipping too.