This is a drop in part that is a standard replacement for your firing pin stop.
The inside corners are radiused to prevent cracking so the part lasts longer.The back corner has a .015 radius to break the corner but maintains a square edge to slow the slide opening.
Rockwell tested: 48 Rc scale; Available for all models of the 1911.
Series 80 firing pin stops will work in Series 70 guns.
Series 70 firing pin stops will only work in Series 70 guns.
Material: Carbon Steel
Caliber: .45 ACP
Hardness: 48 Rc
Drop In: Yes