The Armaspec AR9 firing pin is a replacement firing pin for 9mm AR-pattern rifles and pistols. It is made from 17-4 stainless steel and H900 hardened for strength and wear resistance, making it a good spare or upgrade for a high-round-count PCC. The stainless steel construction also resists corrosion.
- Fits: AR-9
- Material: 17-4 stainless steel
- Heat treat: H900 hardened
- Finish: Stainless
- MPN: ARM682-SS
