1873 Cattleman Bird&';s Head This is the ideal concealable revolver for today&';s Western enthusiast. The bird&';s head grip design has been incorporated into Uberti&';s Cattleman series of 1873 Single Action Army revolvers in both standard and Stallion designs. They are available in various barrel lengths and calibers. The bird&';s head grip was originally designed for Colt Derringers in the 1850s. In 1877, Colt incorporated the distinctive and comfortable grip style into full-frame revolvers called Bird&';s Head Colts. Specifications Caliber or Gauge .375 Magnum / .45 Colt Barrel length (Inches) 3.5" Chamber (Inches) - Choke - Product Type Revolver