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- Color:
- Silver/Black
- Finish:
- Nickel-Boron
- Gun Model:
- AR-15
Code: 2AM-ABA-ABA556B
MPN: ABA5.56B
UPC: 859143003436
Product Info for American Built Arms Company Pro 5.56mm Bolt Assembly
This 556 bolt assembly from American Built Arms Company is built to Mil-Spec dimensions and designed for a long lifetime of use. For superior reliability, these Bolt Carrier Groups feature a nickel boron coated bolt and extractor, each crafted from heat-treated steel. A nickel boron coated bolt assembly has reduced friction and requires less maintenance than standard assemblies. Drop this AB Arms 5.56 bolt assembly into your AR-15 to guarantee your rifle will perform when it matters most.![]()
Specifications for American Built Arms Company Pro 5.56mm Bolt Assembly:
| Manufacturer: | American Built Arms Company |
| Color: | Silver/Black |
| Finish: | Nickel-Boron |
| Gun Model: | AR-15 |
Features of AB Arms Company Mil-Spec 5.56 Bolt Assembly:
- Bolt:
- 9310 Steel
- Heat-treated per Mil-Spec Requirements
- Shot Peened per Mil-Spec Requirements
- MPI Tested Material
- Nickel Boron Coated
- Extractor:
- Aircraft Quality E4140 Steel
- Heat-treated per Mil-Spec Requirements
- Shot Peened per Mil-Spec Requirements
- Nickel Boron Coated
Package Contents:
- American Built Arms Company Pro 556 Bolt Assembly - Nickel Boron Coated
American Built Arms Company Pro 5.56mm Bolt Assembly Orderable Models
List of Orderable Models
- American Built Arms Company Pro 5.56mm Bolt Assembly, Silver/Black, Small ABA5.56B , MPN: ABA5.56B , UPC: 859143003436 , Code: 2AM-ABA-ABA556B