Kit spring s pressure reduction revolver J SW Wolff

Wolff spring s kit to reduce firing pressure in S&W K, L, and N frame revolvers. Installation requires disassembly and subsequent assembly of the revolver. The kit contains an 8 pound hammer spring and 3 rebound spring of reduced power that allow adjustment for a lighter and smoother trigger and hammer action.

Fits the following J-Frame S&W revolver models: 31-32-34-36-37-38-42-442-49-60-63-631-632-637-638-640-642-649-940.

spring s will not fit or work on a polymer frame revolver.