REVOLVER: I.N.A. MODEL TIGER, SERIAL NUMBER 6972, BLUE / CCH, CASE NOT INCLUDED, DOUBLE ACTION, 38 SPECIAL, 3" Notes: Caliber: .38 Special Capacity: 5 rounds The INA Tiger .38 Special is a budget, double-action, five-shot revolver manufactured in Brazil by Industria Nacional de Armas (INA) and frequently imported to the U.S. in the 1960s and 1970s.