Smith & Wesson K Frame Model 66-2 Hammer Block Used – Part 66120E

Smith & Wesson K Frame Model 66-2 Hammer Block – Used OEM Part

Keep your Model 66-2 running reliably with this genuine Smith & Wesson OEM hammer block. The hammer block is a critical internal safety component that prevents the hammer from striking the firing pin unless the trigger is fully depressed — essential for safe, consistent revolver function.

Part Details

• Part Number: 66120E
• Condition: Used, Old Style
• Frame: K Frame
• Compatible Model: Smith & Wesson Model 66-2 (.357 Magnum)
• Caliber: .357 Magnum / .38 Special
• OEM Smith & Wesson Component

Compatible Models

This old-style hammer block is specific to the Model 66-2 variant. It may also fit other K Frame .357 Magnum revolvers of the same era (Models 19, 65, 66) — verify part number before ordering.

Condition Note

This is a used, inspected OEM part. Normal wear consistent with service use. Ideal for repair or restoration of a Model 66-2.