Smith & Wesson K Frame Model 65/66 Cylinder .357 Magnum 6-Shot Stainless Steel Factory New Part 412050000

Smith & Wesson K Frame Model 65/66 Cylinder - .357 Magnum

Genuine factory new Smith & Wesson cylinder designed for K Frame Models 65 and 66 revolvers. This OEM replacement part features stainless steel construction and ensures reliable extraction and ejection for .357 Magnum ammunition.

Specifications

• Frame: K Frame
• Models: 65, 66
• Caliber: .357 Magnum
• Capacity: 6-shot
• Material: Stainless steel
• Length: 1.62"
• Condition: Factory new
• Part number: 412050000

Compatibility

This cylinder is compatible with the following Smith & Wesson K Frame revolvers chambered in .357 Magnum:

• Model 65 – All variants (65, 65-1 through 65-5)
• Model 66 – See extractor warning below

⚠️ Model 66 Extractor Compatibility Warning: The Model 66 underwent an engineering change at the 66-4 dash variant (approximately 1994) that changed the extractor design. Two extractor styles exist and are not interchangeable:

• Older style extractor (non-recessed, legacy alignment pins): Compatible with Model 66, 66-1, 66-2, 66-3
• Newer style extractor (flat-sided star extractor): Compatible with Model 66-4, 66-5, 66-6, 66-7, 66-8

Verify your dash variant before ordering. If you are unsure which extractor style your revolver uses, consult a qualified gunsmith before installation.

Installation Notes

Professional installation by a qualified gunsmith is required. Disassembly and assembly of the firearm is necessary to replace this part. Proper fitting and timing are essential for reliable extraction and safe operation.