Dan Wesson Model 15-2 Vent Rib Two-Barrel .357 Magnum Revolver – Monson Production, 4" & 10" Barrels
This Dan Wesson Model 15-2 two-barrel set combines the brand’s renowned tensioned barrel system with a desirable Monson, Massachusetts roll mark. The package includes 4-inch and 10-inch vent-rib barrels, both threaded for easy swaps, giving the shooter flexibility from carry length to silhouette range. High-polish blued steel, a smooth DA/SA trigger, and factory walnut target grip round out a revolver line long respected for accuracy and robust construction.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – clean, well-maintained bore with minor wear marks; light fouling present; rifling remains well-defined.
What’s Included
- Original Dan Wesson illustrated cardboard sleeve
- 4-inch vent-rib .357 Magnum barrel & shroud (installed)
- 10-inch vent-rib .357 Magnum barrel & shroud assembly
- Uncle Mike’s Sidekick nylon holster (Size 2)
- Assorted factory paperwork
Dan Wesson’s Lewis-patent tensioned barrel design clamps the barrel between the frame and a muzzle nut, promoting repeatable barrel-cylinder alignment and aiding the accuracy that made the 15-2 a favorite in early IHMSA metallic-silhouette matches.
The forward crane latch and solid one-piece frame eliminate the traditional side-plate, resulting in a stronger lockup and easier maintenance. Collectors often seek Monson-marked examples like this one, produced during what many consider the company’s peak manufacturing period.
Interchangeable vent-rib barrels allow quick length changes with basic tools. The 4-inch tube offers balanced handling, while the 10-inch option stretches sight radius for target or hunting roles. Both barrels are factory-threaded for the standard Dan Wesson muzzle nut system.
Adjustable iron sights—interchangeable ramp and patridge fronts paired with a fully adjustable square-notch rear—let shooters fine-tune point of impact for different loads or barrel lengths.
Finished in high-polish blue over carbon steel, the revolver retains a classic appearance. The walnut target grip, complete with Dan Wesson medallion and sharp checkering, provides a secure, comfortable hold for both single- and double-action shooting.




