Smith & Wesson K Frame Model 66 .357 Mag Barrel 4" Non-Pinned Stainless Steel used part with product number 6623A, displayed on a white background.

Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A

$99.99
Skip to product information
Smith & Wesson K Frame Model 66 .357 Mag Barrel 4" Non-Pinned Stainless Steel used part with product number 6623A, displayed on a white background.
  • Smith & Wesson K Frame Model 66 .357 Mag Barrel 4" Non-Pinned Stainless Steel used part with product number 6623A, displayed on a white background.
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 .357 Mag Barrel 4" Non-Pinned Stainless Steel used part with product number 6623A, displayed on a white background.
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
  • Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A
Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A

Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel Old Style .357 Magnum Used - 6623A

$99.99

Smith & Wesson K Frame Model 66 4" Non-Pinned Barrel — Used OEM Part

Genuine Smith & Wesson factory 4" non-pinned barrel for the K Frame Model 66 revolver, chambered in .357 Magnum. Old style construction. Stainless steel. Removed from a used firearm and in good working condition. A direct OEM replacement for a worn, damaged, or missing barrel.

Part Details

  • Part Number: 6623A
  • Condition: Used OEM
  • Frame: K Frame
  • Compatible Model: Model 66 (.357 Magnum)
  • Barrel Length: 4"
  • Barrel Type: Non-Pinned
  • Style: Old Style
  • Material: Stainless Steel

Compatibility Note

This non-pinned barrel is specific to the K Frame Model 66. Verify your model number and dash number before ordering — pinned and non-pinned barrels are not interchangeable. To find your model number, swing out the cylinder and check the frame behind the yoke.

Installation

Barrel replacement requires proper headspacing and timing. Installation by a qualified gunsmith is strongly recommended.

Questions? Call or email us — we carry new, used, and new old stock S&W parts for the full K Frame lineup.

You may also like