OpticsPlanet has a comprehensive selection of holsters for STI handguns. Some of the manufacturers of holsters for STI guns that OpticsPlanet stocks include holsters by Safariland. Holsters of popular STI firearms include STI 2011 holsters and various STI 1911 holsters. If there is a STI holster you cannot find listed here, you can do a site search or contact OpticsPlanet to find out if we sell it. With nearly 20,000 different holsters for sale, it's not easy to make sure that all of them are accounted for! To get help finding the right holster for your STI handgun, contact OpticsPlanet right now!