The American Built Arms firing pin is a replacement firing pin for 5.56mm AR-15 bolt carrier groups. It is made from AISI 8740 steel and chrome plated for smooth operation and corrosion resistance. A good spare to keep on hand for maintenance.
- Brand: American Built Arms
- Type: Firing pin
- Fits: AR-15, 5.56mm
- Material: AISI 8740 steel
- Finish: Chrome plated
- Manufacturer part number: ABAMSFP
