Colt 6520 10mm pistol appears in Fallout and Fallout 2. Another product, the Colt Rangemaster hunting rifle, appears in Fallout, Fallout 2 and Fallout Tactics. Colt 6504 9mm autoloader was to appear in Van Buren.Colt .45 appears in Fallout Extreme.
Real world equivalentEdit
Real-world Colt's Manufacturing Company in Wikipedia.