Features:
- 5.56/.223/.300 Black Out
- Full Auto Capable
- Carpenter 158 MPI and HPT Tested Bolt
- Case Hardened 8620 Carrier
- 4130 Gas Key
- Grade 8 Hardware With Proper Staking
- Gas Key Sealed With Permatex No.3
- 8740 Hard Chrome Firing Pin
- Nickel Boron Coated (Will Not Chip Or Flake)
- Proudly Made In The U.S.A
- Unconditional Lifetime Warranty
| Brand | Toolcraft |
| Model | TCFA-0105569310 |