S&W 9mm Pistol Firing Pin Models 639 & 659 New, Part 103660000

Smith & Wesson 9mm Pistol Firing Pin — New

Part #103660000 | New OEM Factory Part | 9mm

• Fits: S&W Model 639, 659
• Caliber: 9mm (2nd Generation Stainless Pistols)
• Condition: New — original Smith & Wesson factory part
• Type: Firing Pin

The firing pin strikes the primer to initiate ignition. A worn, broken, or damaged firing pin is a common cause of misfires and light primer strikes. This new OEM firing pin restores factory-correct ignition reliability for Models 639 and 659.

Installation Note: Slide disassembly required. Installation by a qualified gunsmith is recommended.

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