When was a 45 colt mark IV series 80 manufactured?

The Colt Mark IV Series 80 in .45 Colt was introduced in 1983 as part of Colt's series of semi-automatic pistols. The Series 80 incorporated a firing pin safety mechanism, enhancing the safety of the firearm. Production continued throughout the 1980s and into the 1990s, with various models and configurations available during that time. Specific manufacturing dates can vary based on the model and production runs.