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Smith & Wesson 445000025 ISMI New J Frame Hammer & Trigger Spring Kit Part 445000025

ISMI Smith & Wesson J-Frame Hammer & Trigger Spring Kit - 445000025

$19.99

ISMI Hammer and Trigger Spring Kit for Smith & Wesson J-Frame Revolvers

This new ISMI aftermarket spring kit is designed for Smith & Wesson J-Frame revolvers. The kit includes a hammer spring and trigger return spring for service or performance-tuning work on a compatible J-Frame action.

Part Details

  • Part number: 445000025
  • Brand: ISMI
  • Condition: New aftermarket replacement
  • Includes: Hammer spring and trigger return spring
  • Part type: Hammer and trigger spring kit

Compatibility

Frame family Fitment guidance
Smith & Wesson J Frame Designed for compatible J-Frame revolver actions. Confirm the exact model, dash revision, action configuration, and existing spring geometry before ordering.

Model-fitment note: The source listing identifies J-Frame compatibility but does not specify an exhaustive model-by-model or dash-by-dash list. Frame-family compatibility alone does not confirm fitment for every J-Frame generation.

Installation

Installation requires disassembly and reassembly of the revolver action. A qualified gunsmith should install and function-test the kit, especially when changing spring rates or trigger characteristics.

Part number: 445000025
Brand: ISMI

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