Ruger Security-Six 6-Inch .357 Magnum Stainless Revolver (1978 Production)
Manufactured in 1978, this full-size Ruger Security-Six pairs the versatility of the .357 Magnum cartridge with the durability of Ruger’s investment-cast stainless steel frame. As one of the company’s early stainless variants, it offers the strength, corrosion resistance, and easy maintenance prized by collectors and shooters alike. The 6-inch barrel, adjustable sights, and DA/SA action make it a well-balanced revolver that reflects the era when Security-Six models served widely in U.S. law enforcement.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – Sharp lands and grooves.
Specific Condition Notes: The satin stainless finish shows scattered handling marks and small scratches consistent with previous use. The bore remains bright and clean.
What’s Included
- Ruger Security-Six revolver
Introduced in 1972 as Ruger’s first double-action revolver line, the Security-Six was engineered for strength. Its investment-cast frame allows a solid top strap without the weight penalty of traditional forgings.
This example features a 6-inch stainless barrel that maximizes velocity and sight radius while maintaining manageable balance. The fully adjustable square-notch rear sight and serrated ramp front sight permit precise elevation and windage tuning.
The revolver uses Ruger’s transfer-bar safety system, allowing the hammer to rest securely on a loaded chamber. A spurred hammer supports both single-action precision and double-action readiness.
Checkered walnut grips with Ruger medallions provide a confident grasp and classic appearance, contrasting the satin stainless finish that resists holster wear and the elements.
Serial number prefix 153 places production in 1978, a period when the Security-Six gained popularity with police agencies for its reliability and ease of maintenance—field stripping requires only removal of the grip screw.




