Wilson Combat 321 Custom Tune Spring Kit for S&W J-Frame Revolvers

The Wilson Combat 321 Custom Tune Spring Kit transforms S&W J-Frame revolvers with precision-engineered components that deliver smoother trigger pull and enhanced reliability. This professional-grade upgrade addresses the common issues of heavy trigger weight and inconsistent action cycling found in factory J-Frame revolvers.

What Makes This Different

Unlike generic aftermarket springs, Wilson Combat's 321 kit uses proprietary spring steel alloys and precise wire dimensions engineered specifically for J-Frame geometry. The kit reduces trigger pull weight by approximately 2-3 pounds while maintaining full ignition reliability with all primer types. Each spring undergoes heat treatment processes that ensure consistent performance across temperature extremes and extended service life.

Key Features

• Reduced trigger pull weight for improved accuracy and control
• Stainless steel construction resists corrosion and maintains spring tension
• Complete kit includes mainspring, trigger return spring, and cylinder stop spring
• Compatible with all S&W J-Frame models including 642, 638, 637, and 442
• Professional-grade materials exceed factory specifications for durability
• Precision-wound springs maintain consistent geometry under compression
• No permanent modifications required for installation

The spring kit delivers measurable improvements in double-action trigger consistency, reducing the effort required for accurate shot placement during rapid fire sequences. Law enforcement officers and concealed carry practitioners benefit from the enhanced trigger control, particularly in high-stress situations where fine motor control becomes critical. The stainless steel construction maintains performance in humid environments and coastal conditions where standard carbon steel springs may corrode.

Technical Specs

• Material: Stainless steel wire construction
• Compatibility: All S&W J-Frame revolvers (.38 Special/.357 Magnum)
• Kit Contents: Mainspring, trigger return spring, cylinder stop spring
• Spring Rate: Optimized for 8-10 pound double-action pull weight
• Finish: Natural stainless steel
• Installation: Requires basic gunsmith tools and knowledge
• Country of Origin: United States

Wilson Combat's reputation for precision manufacturing ensures each spring kit meets strict dimensional tolerances required for reliable ignition and smooth operation. The 321 Custom Tune Spring Kit represents a cost-effective upgrade that maximizes the performance potential of S&W's compact revolver platform.