Smith & Wesson K Frame Model 66-4 Barrel Pinned Stainless Steel Used 2 1/2" .357 Magnum 6623B j649-3u It is 100% compatible across

It is 100% compatible across full-size and compact models in multiple calibers:

Designed to absorb recoil and provide a non-slip hold

258" Spur: Factory-spec spur width ensures proper thumb placement and control during cocking

Part Number: 66159B1

This listing is for one (1) used Smith & Wesson OEM target trigger for the J Frame Model 36 revolver

Smith & Wesson K Frame Model 66-4 Barrel Pinned Stainless Steel Used 2 1/2" .357 Magnum 6623B j649-3u It is 100% compatible acrossSmith & Wesson K Frame Model 66 Barrel Pinned Part Number: 6623B Condition: Used Caliber: . 357 Magnum Length: 2 1 2" Material: Stainless Steel Style: Pinned barrel, old style Compatibility: K Frame Model 66 Combat Magnum Product Details This is a genuine Smith & Wesson factory replacement barrel for the K Frame Model 66 Combat Magnum revolver. This used barrel features the classic pinned design from the old style production era, chambered in . 357