User blog comment:Goddess of Despair/The Alamo Defenders vs Grande Armée/@comment-110.55.2.238-20130517155243/@comment-24180428-20130517204705

I don't think they did. From what I can tell the Dragoon Revolver was in service 1848-1860. The battle of the Alamo was at 1836, 12 years before the Dragoon was used. Also, giving them a revolver would make this battle unfair.