Yes they use Buffalo Hide an easily attainable resource on their end. A good quality easily attained cow hide here would be a great alternative. Inexpensive and easier to get your hands on for the work you intend. Although, I'm just a wannabe, in this area. If you need further direction I can hook you up with a few proffesional holster makers that can help you out. They are personal friends always willing to help out.
,