Description
Rise Armament RA1011NIB bolt carrier group is built for 5.56 applications and finished in nickel boron. The assembly uses 4140 steel and is identified as an M16 5.56 bolt carrier group in the product naming. Use it as a replacement bolt carrier group when a nickel boron finish and 5.56 compatibility are the requirements.
- Nickel boron finish
- 4140 steel bolt carrier group
- 5.56 compatibility
| Fits | 5.56 applications |
|---|---|
| Part Type | Bolt Carrier Group |
| Finish | Nickel Boron |
| Material | 4140 Steel |
| Length | 10.9000 |
