Ruger Police Service-Six .357 Magnum 4-inch Blued Revolver, Fixed Sights, Six-Shot
This Ruger Police Service-Six is the fixed-sight, square-butt duty variant of Ruger’s Six series, chambered in .357 Magnum with a 4-inch barrel. Built on an investment-cast, sideplate-less steel frame with a transfer-bar safety, it represents Ruger’s robust 1970s-era service revolver design. Marked with factory rollmarks and fitted with checkered walnut service stocks featuring Ruger medallions, it offers classic duty configuration and American manufacture.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are minor scratches and blemishes on the finish. Light rust and pitting are present.
What’s Included
- Black leather duty holster with thumb-break retention strap
The Police Service-Six configuration pairs a 4-inch steel barrel with fixed sights and a square-butt grip frame, delivering a straightforward, duty-ready layout. It is a double-action/single-action revolver with Ruger’s transfer-bar safety system and an exposed, serrated hammer spur.
Construction is all steel with a blued finish, including a six-shot fluted cylinder. The frame is investment-cast and sideplate-less, a hallmark of Ruger durability from this era. Checkered walnut service stocks with Ruger medallions and a single grip screw complete the classic service profile.
The barrel features a short underlug and a serrated rib. Sighting is simple and robust: a ramped, serrated, pinned front blade paired with a fixed square-notch rear milled into the topstrap.
Factory markings include "RUGER POLICE SERVICE-SIX" with the Ruger eagle on the frame and ".357 MAGNUM CAL." with the Southport, Conn. address on the barrel. The serial number falls in the 151- prefix range, aligning with an approximate 1975 ship year per Ruger’s serial number table.




