Updates 1873 single action revolvers by replacing the leaf mainspring with a coil mainspring that won’t break or weaken. Invert guide for heavier or lighter hammer pull. Still has four distinct hammer clicks. Available with blued or color case hardened hammer.
SPECS: Steel. 2.8 oz (79 g) wt. System includes 1873 hammer, firing pin, spring strut, 15 lb. coil mainspring, set pin, and guide. Fits Colt, Uberti, Armi San Marco, and Pietta period correct 1873 revolvers. Gunsmith installation required. Instructions included.