Wolff 17 LB Hammer Spring S&W Compact Pistols Short Group B Part# 27017

Wolff 17 LB Hammer Spring — Smith & Wesson Compact Pistols (Short / Group B)

Part# 27017 | Wolff GunspringMakers | New Old Stock

Premium Wolff 17 LB reduced-power hammer spring for Smith & Wesson compact pistols. Provides lighter hammer fall for a smoother trigger pull while maintaining reliable primer ignition.

Spring Details

• Part Number: 27017
• Spring Type: Hammer Spring — Short (Group B)
• Weight: 17 LB (reduced power)
• Quantity: 1 spring
• Manufacturer: Wolff GunspringMakers (USA, est. 1948)
• Condition: New Old Stock

Compatible Models

• 9mm: 469, 669, 6904, 6906, 6924, 6926, 6944*, 6946*, 3913 (all), 3914 (all), 3953*, 3954*
• .40 S&W: 457, 4013, 4014, 4053*, 4054*
• .45 ACP: 4516, 4516-1, 4556

*Some of these models have a 17 LB factory hammer spring.

Note: S&W centerfire semi-autos use two hammer spring lengths — Long (Group A) and Short (Group B). This is the Short (Group B) spring for compact models.

Installation

Disassembly of the pistol is required to access the hammer spring. Installation by a qualified gunsmith is recommended. Always function test with your carry ammunition after installation to verify reliable primer ignition.

This listing is for one (1) hammer spring only. Have questions? Call or email us — we're happy to help.