Ruger Police Service-Six .357 Magnum 4" Stainless Revolver – N.B.P.D. Marked (1983)
This 1983 Ruger Police Service-Six is a full-size, stainless-steel revolver chambered in .357 Magnum and property marked for the N.B.P.D. Built on Ruger’s Six-Series frame, it features the less common heavy 4" barrel, investment-cast construction, and durable satin stainless finish. Its municipal police provenance and limited heavy-barrel production make it a notable piece for duty-gun enthusiasts and collectors alike.
Condition
Overall Condition: Good condition, showing some 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.
What’s Included
- Holster
The heavy 4" barrel sets this Service-Six apart from the more common taper-barrel variants, adding forward weight for reduced muzzle rise and improved durability. Ruger produced the heavy-barrel configuration in smaller numbers, making surviving examples relatively scarce.
The revolver’s satin stainless finish covers the frame, cylinder, and barrel, all investment-cast from Ruger’s signature stainless alloy. This construction approach provides strength while resisting the elements—a practical choice for a duty sidearm carried daily by municipal officers.
Property marking on the frame confirms service with the N.B.P.D., offering documented law-enforcement provenance that collectors often seek. The serial prefix 159- places production in 1983, anchoring the gun firmly within the second half of Ruger’s Six-Series timeline and just before the transition to the GP100 platform.
Fixed sights consist of a pinned ramp front with a serrated blade and a square-notch rear integral to the top strap—simple, snag-free, and rugged for duty use. A smooth, combat-style trigger and exposed hammer allow both double-action and single-action operation, while checkered walnut grips with Ruger medallions provide a secure, classic feel.




