I was always under the impression that longtime gun collector and one of the original member of the Texas Gun Collectors Assn (TGCA), S. P. Stevens (of San Antonio) supplied all the principals in the Alamo production with firearms from his personal collection. I was told this by former President of the TCGA, James T. Brown DVM, after being introduced to Mr. Stevens at a TCGA show in Dallas about 1984 or 85.