Description
Grooved, fully relieved and lightened spur gives positive, no-slip thumb grip. Gold Cup-style, repositioned hammer strut hole reduces full cock spring pressure for a crisp, lighter feeling trigger pull. Hammer hooks are precision ground to .020′, squared, ready for light stoning/final polish. Narrowed half-cock notch prevents sear nose damage.SPECS: EDM from carbon steel, bar stock. Fits Series 70 and 80. Gunsmithing required.




![[P55340] Starting Key (2-Pack)](https://www.greatdiyhardware.com/wp-content/uploads/2026/07/p55340-starting-key-2-pack.webp)