Smith & Wesson K Frame Model 10 Hammer Block - .38 Special - 10120

Smith & Wesson K-Frame Model 10 Hammer Block

Used OEM factory hammer block for Smith & Wesson K-Frame Model 10 .38 Special revolvers. This safety component helps prevent hammer contact with the firing pin unless the trigger is fully depressed. Part number 10120.

Part Details

• Part number: 10120
• Brand: Smith & Wesson
• Frame: K Frame (Medium Frame)
• Model: 10
• Caliber: .38 Special
• Component: Hammer block
• Style: Old style
• Condition: Used, functional OEM part
• Weight: 1 ounce

Fitment

Intended for Smith & Wesson K-Frame Model 10 .38 Special revolvers with matching old-style hammer-block geometry. Verify the exact dash number, internal configuration, and original-part geometry before ordering.

Do not assume fitment across other K-Frame models or variants without confirming compatibility with a qualified gunsmith.

Installation

This is a safety-related internal component. Professional gunsmith installation and function testing are strongly recommended. After installation, verify hammer-block operation, trigger function, and safe operation. This listing is for the hammer block only; firearm not included.