These O-rings will replace any worn, deformed or lost rings from any JP Silent Captured Spring or Variable Mass Operating System (VMOS™) bolt carrier.
Replacement of O-rings should take place when you start to see fraying or cracking of the rings. This will happen sooner in the case of 9mm carbines, around 5000 rounds.
- Requires FFL:
- False
- Clearance Flag:
- 0
- Ammo Flag:
- False
- Drop Ship Days:
- 3
- Hazardous Mat Flag:
- False
- FFL Flag:
- 0
- Drop Ship FLag:
- False
- Availability:
- in-stock
