S&W K Frame Model 66 4" Pinned Barrel .357 Magnum Stainless Used - 6623C Model 24 Note: Installation requires firearm disassembly

Note: Installation requires firearm disassembly and knowledge of fire control components

Direct Replacement: Fits K Frame Model 12 Airweight revolvers (old style / pinned)

Disassembly and reassembly of the revolver required for proper installation and fitting

Verify pin diameter compatibility with heavily modified or non-standard frames before ordering

S&W K Frame Model 66 4" Pinned Barrel .357 Magnum Stainless Used - 6623C Model 24 Note: Installation requires firearm disassemblySmith & 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: 6623C Length: 4" Style: Pinned Finish: Stainless Steel Condition: Used, old style Fits: Smith & Wesson K