The Armaspec AR10 Firing Pin (brand part no. ARM683-SS) is a precision-machined replacement firing pin built for AR10-pattern .308 bolt carrier groups. Armaspec machines the pin from 17-4 stainless steel and heat-treats it to the H900 condition for a hard, wear-resistant strike face that holds up under the heavier bolt thrust of a .308-class rifle. A worn factory firing pin is a common cause of light primer strikes, and a hardened stainless replacement is a straightforward way to restore consistent ignition on a big-bore AR. This pin is a direct-fit replacement for a standard AR10 bolt carrier group with no fitting required.

Key Specifications

• Machined from 17-4 stainless steel for corrosion resistance and strength under the heavier bolt thrust of a .308-class AR.
• Heat-treated to the H900 condition for a hard, wear-resistant strike face.
• Built as a direct-fit replacement for standard AR10-pattern bolt carrier groups.

Frequently Asked Questions

What is the Armaspec AR10 Firing Pin made from? It is machined from 17-4 stainless steel and heat-treated to the H900 condition.

Does this fit AR-15 bolt carriers too? No, this pin is sized specifically for AR10-pattern .308 bolt carrier groups, not standard AR-15 carriers.

Buy the Armaspec AR10 Firing Pin

Keep a .308 AR build striking primers consistently with a hardened stainless firing pin built to outlast the factory part. Shop Schaefer Defense’s small AR10 parts selection and order from our Lubbock, Texas gun shop for fast shipping.