S&W K Frame Model 66 4" Pinned Barrel .357 Magnum Stainless Used - 6623H K-22 Old style thumb piece design

Old style thumb piece design

Disassembly and reassembly of the fire control group is required to replace this part

In-stock parts ship quickly from our US facility

representing the classic old-style configuration

It will not replace MIM triggers

S&W K Frame Model 66 4" Pinned Barrel .357 Magnum Stainless Used - 6623H K-22 Old style thumb piece designSmith & Wesson K Frame Model 66 4" Pinned Barrel Stainless Steel Replace the barrel on your Model 66 Combat Magnum with this authentic Smith & Wesson factory 4" pinned barrel. Finished in stainless steel to match the original hardware, this old style used barrel is the correct OEM replacement for the K Frame . 357 Magnum revolver. Part Number: 6623H Length: 4" Style: Pinned Finish: Stainless Steel Condition: Used, old style Fits: Smith & Wesson K