Smith & Wesson J Frame Model 340PD Firing Pin Assembly with Spring & Retaining Pin - Model 340PD .357 Magnum 340181

Complete firing pin assembly for the Smith & Wesson Model 340PD AirLite Sc revolver. This essential fire control component includes the firing pin, firing pin spring, and retaining pin—everything needed for reliable ignition in your .357 Magnum J Frame.

What's Included:

• Firing Pin (new style)
• Firing Pin Spring
• Firing Pin Retaining Pin

Specifications:

• Frame Size: J Frame
• Caliber: .357 Magnum (also fits .38 Special)
• Condition: Used, fully functional
• Part Number: 340181
• Style: New style firing pin design

Compatible Models:

This firing pin assembly is designed for the Model 340PD and may be compatible with other J Frame .357 Magnum revolvers including Models 340, 340SC, 360, 360PD, and similar AirLite Sc variants. As with all centerfire J Frame parts, this assembly fits .357 Magnum and .38 Special revolvers but is not compatible with rimfire (.22 LR) J Frame models.

Installation Note:

Professional installation recommended. Ensure proper headspace and function testing after installation.