- AR15 Pistol Caliber Parts
- Wilson 9mm AR9 S7 Firing Pin & Spring
- Hard chrome finished
- Machined from rugged S7 tool steel
- Included is also a Wilson AR9 firing pin spring
The firing pin of a 9mm AR carbine is under intense pressure and factory steel and titanium units are often subject to breakage and excessive tip erosion or wear. Since Wilson's high performance carbines deserve the highest performing parts they designed a Bullet Proof firing pin machined from virtually unbreakable S-7 tool steel.
For more info, visit Wilson