Brownells Swk/L/N-202 Pro-Spring Kit For S&W K,L,N Frame Revolver

Standard power kit with a Power Rib mainspring that duplicates the factory spring’s rate. Gives positive ignition of magnum primers, vastly improved smoothness and consistency of pull. Includes 13, 14, and 15 lb. rebound springs for precise tuning. Mfg: Brownells