Ruger GP100 KGP-161 .357 Magnum, 6 Inch Stainless, 1997 Production with Adjustable Sights
This Ruger GP100 is the KGP-161 configuration, a 6-inch, stainless steel .357 Magnum built in 1997. It features a full underlug with a serrated rib, Ruger’s triple-locking cylinder in a one-piece heavy frame, and adjustable iron sights. The revolver carries the Ruger Southport, Conn. U.S.A. barrel address with the Ruger phoenix rollmark, highlighting its U.S.
manufacture and period-correct markings.
The six-shot fluted cylinder, DA/SA action with a smooth trigger, and exposed hammer with a checkered spur give this GP100 the classic Ruger feel and function. Its one-piece black rubber grip with wood insert panels completes the factory configuration associated with this model and era.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There are widespread scratches and blemishes across the metal surfaces. Pitting is present in many areas, and the cylinder shows heavy pitting. The grips are poorly fit, and the wood insert panels have noticeable play. Rifling is present with minimal blemishing.
What’s Included
- Ruger GP100 KGP-161 .357 Mag revolver
The KGP-161 designation identifies this GP100 as the 6-inch stainless variant, delivering full-length balance with a full underlug barrel and serrated rib. The stainless frame, cylinder, and receiver share a matching stainless finish, and the six-shot cylinder is fluted.
Ruger’s triple-locking cylinder and one-piece heavy frame design contribute to the platform’s well-known durability. The left-side push-button cylinder release provides straightforward operation, and the transfer-bar safety is part of the standard GP100 design.
Sights are fully user-adjustable at the rear with a ramped front, allowing precise sighting with .357 Magnum or .38 Special loads. The smooth trigger and DA/SA action support deliberate double-action presses and precise single-action shots.
Factory markings include the Ruger Southport, Conn. U.S.A. barrel address and the Ruger phoenix rollmark. This example was manufactured in 1997 in the United States, aligning with the classic GP100 configuration and catalog designation KGP-161.