Smith & Wesson Model 4566

About the Smith & Wesson Model 4566

The Smith & Wesson Model 4566 is a full-size semi-automatic pistol chambered in .45 ACP, introduced by Smith & Wesson in 1990. It is part of Smith & Wesson's Third Generation semi-automatic line, offering the proven .45 ACP cartridge in a modern double-action platform that combined the stopping power favored by .45 enthusiasts with the operational advantages of a DA/SA trigger system. The pistol features a stainless steel frame and a stainless steel slide, providing a durable platform designed for years of reliable service in both duty and civilian applications. With a magazine capacity of 8 rounds, this pistol offers ample firepower for defensive applications. competing against established .45 ACP platforms like the 1911 and SIG P220, these pistols offered higher capacity and double-action operation that appealed to agencies and shooters wanting modernized .45 ACP duty guns. In S&W's Third Generation numbering system, this model's designation indicates all stainless steel construction.

Smith & Wesson's Third Generation pistols used a sophisticated model numbering system where each digit conveyed specific information about caliber, frame size, action type, and materials - essentially encoding the entire specification sheet into four digits.

Smith & Wesson Model 4566 specifications

The 4566 used a full-size frame with shortened slide and barrel, providing better balance than compact models while remaining more concealable than full-size variants.