Colt Z40 Pistol #1 at RIA

However, after only 800 had been sold, Colt backed out of the deal and dropped the Z40 from its catalog. Why? Because they had happened to use a Z40 as the base gun for a model “smart gun”, and the public reaction was overwhelmingly negative. In the aftermath, Colt management threw out the Z40 as the proverbial baby in the bathwater, simply because it had been tarnished by the PR of the smart gun debacle.

CZ, for its part, made a few tweaks to the design (primarily replacing the DA-only lockwork with the DA/SA system for the CZ-75) and released it on their own as the CZ-40. This particular gun at Rock Island is in fact serial number 1 of the Colt Z40