Ruger Security-Six 150-Series .357 Magnum Revolver, 6" Barrel, 1973 Production – Blued Finish
Produced in 1973, this early 150-series Ruger Security-Six combines the robust engineering of Ruger’s first double-action revolver line with a low-back grip frame produced only from 1972 to 1974. Its heavy 6-inch barrel, adjustable sights, and solid investment-cast frame make it a practical shooter and a desirable collectible from the formative years of the Security-Six platform.
Condition
Overall Condition: Fair – Extensive signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Rifling Condition: Good – Intact, well-defined lands and grooves.
Specific Condition Notes: Minor to moderate scratching, scuffing, finish loss, pitting, and blemishing are visible on the exterior surfaces.
What’s Included
- Brown leather flap holster
The 150-prefix serial range identifies this revolver as a first-generation Security-Six with the distinctive low-back grip frame, a feature discontinued after 1974. Collectors prize these early examples for their limited production run and unique handling profile.
The 6-inch heavy barrel features a serrated top rib that cuts glare and aids sight alignment. A pinned, serrated ramp front sight pairs with a fully adjustable square-notch rear sight, giving the shooter a clear, precise sight picture.
Ruger’s one-piece investment-cast carbon-steel frame eliminates a side-plate, adding strength and rigidity. Dual-latch cylinder lock-up and a transfer-bar safety system provide secure, reliable operation in both double-action and single-action modes.
Factory walnut grip panels with diamond checkering and inset Ruger medallions offer a classic look and confident purchase. The deep blued finish complements the revolver’s traditional styling while protecting the carbon-steel surfaces.
As the forebear of the later GP100 series and widely adopted by law-enforcement agencies of the 1970s, this 150-series Security-Six represents an influential step in Ruger’s double-action lineage—making it both a functional shooter and a noteworthy collectible.