Smith & Wesson Rear Sight Body Plunger Spring - Factory New OEM Part
Genuine Smith & Wesson factory new rear sight body plunger spring (Part #105730000) for multiple 9mm, 10mm, and .45 ACP pistol models. Essential component for adjustable rear sight operation.
Compatible Models:
- 9mm Models: 439, 459, 539, 559, 639, 659, 3904, 3906, 3944, 3946, 5903, 5904, 5906
- 10mm Models: 1006
- .45 ACP Models: 645, 4506
Product Features:
- Factory new condition - authentic S&W OEM part
- Precision-manufactured spring steel
- Critical component for rear sight body
- Ensures proper sight plunger tension
- Direct replacement for worn or weakened springs
- Maintains sight adjustment integrity
Installation Notes:
Rear sight plunger spring installation requires proper disassembly of the rear sight assembly. Professional gunsmith installation recommended to ensure correct function and sight retention.
Maintain reliable rear sight operation in your Smith & Wesson pistol with this genuine factory replacement spring.