Smith & Wesson Used N Frame Model 58 Blue .41 Magnum 4" Non-Pinned Barrel N197 JFRAME31U or trigger upgrades on your

or trigger upgrades on your service revolver

Proper bolt function is absolutely critical for accuracy

Caliber: 7

Smith & Wesson J Frame Model 637 Airweight Rebound Slide Assembly

The "442" designation indicates an aluminum alloy frame (Airweight) with a concealed hammer (double-action only)

Smith & Wesson Used N Frame Model 58 Blue .41 Magnum 4" Non-Pinned Barrel N197 JFRAME31U or trigger upgrades on yourSmith & Wesson Used N Frame Model 58 Blue . 41 Magnum 4" Non Pinned Barrel Part #N197 Genuine Smith & Wesson factory replacement barrel for the N Frame Model 58 chambered in . 41 Magnum. Blue finish, 4" length, non pinned configuration. All parts are cleaned, inspected, and guaranteed. This is a used, original equipment manufacturer (OEM) part. Fits: S&W N Frame Model 58 (. 41 Magnum) Length: 4" Finish: Blue Type: Non Pinned Condition: Used OEM