Smith & Wesson Model 645 .45 ACP Stainless DA/SA Pistol, Second Generation, 5-inch, Fixed Sights, 6 Magazines
The Smith & Wesson Model 645 is the company’s first commercially marketed .45 ACP autoloader, produced circa 1985–1988 as part of the Second Generation line. This full-size, matte stainless steel pistol features a 5-inch barrel, fixed sights with an orange-insert front, and comes with six factory 8-round magazines. A known screen presence in Miami Vice seasons 3–4, it stands out as a collectible 1980s S&W .45 with classic single-stack configuration and U.S. manufacture.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Markings from previous handling and use are present. See photos for detailed views.
What’s Included
- Smith & Wesson Model 645 pistol
- Six factory S&W 8-round single-stack steel magazines for .45 ACP, marked ".45 CAL" with S&W logo and numbered witness holes
Built in the United States during the mid-1980s, the Model 645 represents S&W’s move into .45 ACP autoloaders in its Second Generation series. Its full-size stainless steel construction with a matte finish offers a classic period-correct look and robust feel, paired with a 5-inch barrel. The barrel hood is marked "45 AUTO."
This pistol is a semi-automatic, recoil-operated, hammer-fired DA/SA design. It features a slide-mounted safety/decocker, a left-side magazine release, and a smooth-faced trigger. The hammer is spurred and checkered for positive control.
The sighting setup is straightforward and durable: a fixed rear notch and a ramped front sight with an orange insert for clear sight acquisition. The slide has rear serrations and no front serrations, consistent with the Second Generation pattern.
The Model 645 uses single-stack magazines for an 8+1 capacity. This example includes six factory S&W steel magazines, each marked ".45 CAL" with the S&W logo and numbered witness holes—useful for both range use and organized storage.
Beyond its technical pedigree, the Model 645 has pop-culture prominence from Miami Vice (seasons 3–4), adding period significance for enthusiasts. Two-panel checkered wooden grips complete the classic 1980s S&W aesthetic.