Smith & Wesson Model 13-3 .357 Magnum K-Frame Revolver, 4 Inch Heavy Barrel, Blued, Fixed Sights
This Smith & Wesson Model 13-3 is a K-frame "Military & Police Magnum" fixed-sight revolver with a heavy 4-inch barrel and blued carbon-steel construction. As a 13-3 engineering change, it omits the earlier pinned barrel and recessed cylinder. The yoke is marked "MOD. 13-3," and the AEZ-prefix serial indicates mid-1980s production, placing it in a well-regarded era of S&W duty revolvers.
The revolver features a DA/SA action, a smooth-face trigger, and an exposed, color case-hardened hammer with a checkered spur. Fixed sights consist of a serrated ramp front and a fixed square-notch rear milled into the topstrap, which, along with the barrel, carries longitudinal anti-glare serrations. The square-butt frame is fitted with checkered walnut Magna grips with S&W medallions.
Built on a carbon-steel K-frame with a blued finish, the 13-3 retains hallmark duty features like a heavy-profile barrel with a short lug and a knurled ejector-rod tip. Capacity is six rounds of .357 Magnum. Markings include "MADE IN U.S.A. MARCAS REGISTRADAS SMITH & WESSON SPRINGFIELD, MASS."
Originating from the United States, this Model 13-3 reflects the straightforward, service-focused configuration that made the fixed-sight K-frame a mainstay. Its mid-1980s production window and classic configuration make it a solid representative of the series.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in solid shape. There are many instances of scratches and blemishes present. Rust and pitting are visible throughout the revolver. Minor carbon buildup and scorching are present around the forcing cone and on the cylinder face. The rifling is present and defined, though blemished.
What's Included
- Smith & Wesson Model 13-3 .357 Magnum revolver
The 13-3 engineering change is significant: it eliminated the earlier pinned barrel and recessed cylinder, aligning this example with the mid-1980s production transition. The AEZ-prefix serial falls into that period, offering useful context for dating and configuration.
This example retains core duty-focused features: a heavy 4-inch carbon-steel barrel with a short lug, fixed sights, and anti-glare serrations along the barrel and topstrap to cut reflections. The yoke is factory-marked "MOD. 13-3" for quick model verification.
Controls and furniture are classic S&W K-frame. It runs a double-action/single-action system with a smooth-face trigger and an exposed, color case-hardened hammer with a checkered spur. The square-butt frame wears checkered walnut Magna grips with S&W medallions, and the ejector rod has a knurled tip for positive purchase.
Finish and materials are consistent with service use: blued carbon-steel frame and cylinder, fixed square-notch rear sight milled into the topstrap, and a serrated ramp front. Capacity is six rounds of .357 Magnum, and the revolver carries factory rollmarks indicating U.S. manufacture in Springfield, Massachusetts.