This is the factory Heckler & Koch firing pin retaining pin for the HK416. It holds the firing pin in the bolt carrier. A small part that is easy to lose during cleaning, so it is worth keeping a spare. Compare it with your existing part or the manufacturer's parts diagram to confirm it matches your firearm before ordering.
- Part: Firing pin retaining pin
- Fits: HK416
- Brand: Heckler & Koch
- UPC: 642230250994
