5.56 AR-15/M16 BCG MPI Nitride Custom Engraved U.S. Flag
- Fully Assembled Bolt & Carrier Assembly
- Caliber: .223/5.56 & 300AAC
- Carrier Material: 8620 Nitride Treated
- Bolt Material: 9310 Nitride Treated
- MPI (Magnetic Particle Inspected) Bolt
- 100% Made in the USA