Features:
- M16 profile 5.56/223/300BLK
- Nitrided throughout assembly, including carrier and key
- 9310 Bolt
- MPI’d
- Shot Peened
- Mil-Spec Tool Steel Extractor w/ Crane (NAVSPECWAR) o-ring & spring
- Mil-Spec Staking on the Keys
- 100% Made in the USA
- H&M Black Nitride plating for a deep, smooth black nitride finish
