The Apex Tactical Specialties Evolution K- & L-Frame Hammer For S&W Revolvers is a purpose-built upgrade for current production Smith & Wesson K-Frame and L-Frame centerfire revolvers. Originally engineered as a semi drop-in replacement for Performance Center models, this Evolution IV hammer uses a pinned sear and stirrup design to replace factory MIM components and deliver more consistent, refined operation.

This hammer kit converts your revolver to double-action-only, removing the hammer spur to streamline the profile and focus on smooth, repeatable trigger pulls. Precision manufactured from heat-treated 17-4 PH stainless steel and finished through wire EDM, CNC machining, and surface grinding, it is ideal for dedicated range use, competition, and serious training where reliability and consistency matter. Apex Tactical Specialties is widely respected for thoughtful revolver enhancements that balance performance with dependable craftsmanship.

Key Features:

• Manufacturer: Apex Tactical Specialties
• Model: Evolution IV K/L-Frame Hammer
• Make Model Fit: Smith & Wesson K-Frame And L-Frame Centerfire Revolvers
• Material: Heat Treated 17-4 Ph Stainless Steel
• Included Components: Hammer With Pre-Installed Sear, Sear Spring, Stirrup And Pins, Rebound Slide Springs, Firing Pin, And Firing Pin Return Spring
• Function: Converts Revolver To Double Action Only And Removes Hammer Spur