Smith & Wesson Multi-Model Pistol Mainspring Release Lever — New OEM Part 104030000
$7.99
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Smith & Wesson Multi-Model Pistol Mainspring Release Lever — New OEM Part 104030000
$7.99
Smith & Wesson Multi-Model Pistol Mainspring Release Lever — New OEM Factory Part
Factory new OEM mainspring release lever for multiple Smith & Wesson 3rd generation semi-automatic pistols, including TSW and compact CS series models. This genuine S&W replacement part (part #104030000) allows for safe disassembly of the mainspring assembly during maintenance and cleaning. A worn or damaged lever can make mainspring removal difficult or unsafe — this new OEM lever restores factory-correct function and ensures safe, reliable mainspring disassembly.
Specifications
- Part Number: 104030000
- Manufacturer: Smith & Wesson
- Part Type: Mainspring Release Lever
- Calibers: 9mm, .40 S&W, .45 ACP, 10mm
- Generation: 3rd Generation (TSW & CS Series)
- Condition: Factory New OEM
Model Compatibility Chart
| Model | Caliber | Series | Compatibility |
|---|---|---|---|
| Model 3906 | 9mm | 3rd Gen | ✓ Compatible |
| Model 3913, 3914 | 9mm | 3rd Gen Compact | ✓ Compatible |
| Model 5903TSW, 5906TSW | 9mm | 3rd Gen TSW | ✓ Compatible |
| CS9 (CS9C, CS9D, CS9S) | 9mm | Chief's Special | ✓ Compatible |
| Model 4003TSW, 4006TSW | .40 S&W | 3rd Gen TSW | ✓ Compatible |
| Model 4013TSW, 4513TSW | .40 S&W / .45 ACP | 3rd Gen TSW Compact | ✓ Compatible |
| CS40 (CS40C, CS40D, CS40S) | .40 S&W | Chief's Special | ✓ Compatible |
| Model 4563TSW, 4566TSW | .45 ACP | 3rd Gen TSW | ✓ Compatible |
| CS45 (CS45C, CS45D, CS45S) | .45 ACP | Chief's Special | ✓ Compatible |
| Model 1006, 1066 | 10mm | 3rd Gen | ✓ Compatible |
| Model 3904, 5903, 5904, 5906 (non-TSW) | 9mm | 3rd Gen | ⚠ Verify fit — non-TSW variants |
| Model 39, 439, 539, 459, 559, 659 | 9mm | 1st/2nd Gen | ✗ Not compatible — earlier generation |
| M&P Series (all) | Various | Modern | ✗ Not compatible — striker-fired |
Important Notes
- This listing is for the mainspring release lever only. Mainspring, pins, and other fire control parts are sold separately. >li>This lever is specific to 3rd generation S&W semi-auto pistols, including TSW and CS (Chief's Special) compact variants. It is not compatible with 1st or 2nd generation models. >li>The CS series (CS9, CS40, CS45) are compact Chief's Special variants of the 3rd generation platform and share this lever. >li>Proper fitting may be required. Installation by a qualified gunsmith is recommended. >li>All Smith & Wesson factory parts are subject to availability and may require backorder processing.