NiB Complete Bolt Carrier Group – .223 – Nickel Boron
$149.99
NiB Complete Bolt Carrier Group – .223 – Nickel Boron
Looking for a high-quality bolt carrier for your AR-style rifle? Look no further than our Nickel Boron coated, fully assembled AR .223/5.56 bolt carrier ready to install and use. Made from top-grade materials and designed for reliable performance, this NiB bolt carrier is a great choice for your rifle. NiB is prized for its hardness, lubricity, and corrosion resistance.
Built from 8620 Steel, heat treated to Army specifications, NiB (Nickel Boron) coating.
Includes:
- NiB Bolt Carrier w/o Forward Assist Serrations
- NiB Carrier Key
- Firing Pin
- NiB Cam Pin
- NiB Retro Firing Pin Retaining Pin
- Bolt carrier key screws (2)
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- Made in America
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Description
NiB Complete Bolt Carrier Group – .223 – Nickel Boron
Looking for a high-quality bolt carrier for your AR-style rifle? Look no further than our Nickel Boron coated, fully assembled AR .223/5.56 bolt carrier ready to install and use. Made from top-grade materials and designed for reliable performance, this NiB bolt carrier is a great choice for your rifle. NiB is prized for its hardness, lubricity, and corrosion resistance.
Built from 8620 Steel, heat treated to Army specifications, NiB (Nickel Boron) coating.
Includes:
- NiB Bolt Carrier
- NiB Carrier Key
- Firing Pin
- NiB Cam Pin
- NiB Retro Firing Pin Retaining Pin
- Bolt carrier key screws (2)
Bolt Carrier Specs:
- Carrier: 8620 steel
- Cam pin: 4340 Alloy steel
- Carrier key: 4130 Alloy steel
- Army Spec Heat Treatment
- NiB Finish
- Full auto cut only at this time
Bolt:
- C158 Material
- Mil-Spec heat treat
- NiB Finish
Extractor:
- 4140 Chrome Moly
- Machined from bar-stock
- Mil-Spec heat treat
- NiB Finish
SKU: BC-A-223NB
Additional information
| Application | AR15 |
|---|---|
| Caliber | .223 |
| Heat Treated | Yes |
| Material | 8620 Steel, heat treated to 15N-89-91 |
| Finish | Nickel Boron (NiB) |


















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