S&W J Frame Trigger Smooth .300" with Hand MIM New Style .357 Mag Used, Part 340107A
$39.99
Skip to product information
S&W J Frame Trigger Smooth .300" with Hand MIM New Style .357 Mag Used, Part 340107A
$39.99
Factory OEM Smith & Wesson smooth .300" trigger with integrated hand for J Frame centerfire revolvers. MIM (Metal Injection Molded) construction, new-style design. Used surplus part in good working condition.
Specifications
- Part Number: 340107A
- Trigger Face: Smooth, .300" width
- Construction: MIM (Metal Injection Molded)
- Includes: Integrated hand assembly
- Style: New Style
- Caliber: .357 Magnum / .38 Special (centerfire)
- Frame Size: J Frame
- Condition: Used / Surplus
- Brand: Smith & Wesson
Function
The trigger transfers the shooter's pull to the fire control group, rotating the cylinder via the integrated hand and releasing the hammer. The smooth .300" face provides a consistent, snag-free pull surface. MIM construction delivers factory-spec geometry and durability. The integrated hand simplifies installation as a single assembly.
Compatibility
| Model | Caliber | Frame | Notes |
|---|---|---|---|
| Model 340 | .357 Mag / .38 Spl | J Frame | New style — verify before ordering |
| Model 340PD | .357 Mag / .38 Spl | J Frame | New style — AirLite Sc |
| Model 360 | .357 Mag / .38 Spl | J Frame | New style — verify before ordering |
| Model 360PD | .357 Mag / .38 Spl | J Frame | New style — verify before ordering |
| Model 640 | .357 Mag / .38 Spl | J Frame | New style — verify before ordering |
| Model 649 | .357 Mag / .38 Spl | J Frame | New style — verify before ordering |
Important: This is a new-style trigger. Verify your revolver uses the new-style trigger design before ordering — old and new style triggers are not interchangeable. Rimfire J Frame models (43, 63, 317) are not compatible.
Installation Note
Professional installation by a qualified gunsmith is recommended. Verify hand timing and trigger function before returning to service.