Smith & Wesson Model 639 Second Generation 9mm Stainless Steel DA/SA Pistol, 4" Barrel
The Smith & Wesson Model 639 was the company’s first all-stainless service automatic, and this mid-1980s, square-trigger-guard example represents the refined stage of the Second Generation line. Built on a full-size stainless frame with DA/SA operation and a single-stack magazine, it combines durable construction with a slim profile that remains compliant in capacity-restricted jurisdictions.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good — clean, well-maintained, minor wear marks.
Bore Rifling: Good — intact, well-defined lands and grooves.
Specific Condition Notes: The stainless surfaces exhibit scattered scratches and small blemishes consistent with normal carry and holster use. The bore is bright and shiny.
What’s Included
- Smith & Wesson Model 639 pistol
- One factory 8-round stainless steel single-stack magazine
This Model 639 features all-stainless construction—slide, frame, and barrel—providing corrosion resistance and a distinctive satin matte finish that was new to S&W service autos of the era.
The pistol operates in double-action/single-action mode with a slide-mounted safety/decocker, firing-pin safety, and half-cock notch, offering layered mechanical safeguards without slowing deployment.
A serrated ramp front sight integral to the slide pairs with a low-profile adjustable rear sight, giving shooters a robust yet precise iron-sight picture.
Checkered walnut grip panels with gold-tone S&W medallions add traditional styling and a secure grasp, while the square trigger guard reflects later-run Second Generation production details.
Marked by the “TAT” serial prefix, this pistol falls within the 1983–1987 manufacturing block, predating the higher-capacity 5900 series and making it notable for collectors tracking S&W’s transition era.