This is the factory Heckler & Koch bolt catch axle for the MP5, MP5/10 and MP5/40. It is the pin the bolt catch pivots on. Replace a lost or worn axle with the genuine HK part. Compare it with your existing part or the manufacturer's parts diagram to confirm it matches your firearm before ordering.
- Part: Bolt catch axle
- Fits: HK MP5, MP5/10, MP5/40
- Brand: Heckler & Koch
- UPC: 642230147843
