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A Smith & Wesson mainspring release lever pistol part with model numbers listed on the label.

S&W Multi-Model Pistol Mainspring Release Lever New, Part 104030000

$7.99

Smith & Wesson Multi-Model Pistol Mainspring Release Lever — New

Part #104030000 | New OEM Factory Part | Multiple Calibers

  • Condition: New — original Smith & Wesson factory part
  • Type: Mainspring Release Lever
  • Fits: 3rd Generation TSW and compact pistol models

Compatible Models:

9mm: 3906, 3913, 3914, 5903TSW, 5906TSW, CS9C, CS9D, CS9S

.40 S&W: 4003TSW, 4006TSW, 4013TSW, 4513TSW, CS40C, CS40D, CS40S

.45 ACP: 4563TSW, 4566TSW, CS45C, CS45D, CS45S

10mm: 1006, 1066

The mainspring release lever 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.

Installation Note: Proper fitting required. Installation by a qualified gunsmith is recommended.

We specialize in new, used, and new-old-stock Smith & Wesson semi-automatic pistol parts. Contact us for any S&W parts needs.

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