American Built Arms Company 5.56 Bolt Carrier Group with Nickel Boron Md: ABABCGNBB

5.56 Bolt Carrier Group with Nickel Boron Bolt

Mil-Spec+ Bolt Carrier Group with Nickel Boron Coated Bolt and Cam Pin



Specifications :

Bolt :

- Carpenter 158 Steel

- Heat treated per Mil-Spec Requirements

- Shot Peened per Mil-Spec Requirements

- MPI Tested Material Per Mil-Spec Requirements

- Nickel Boron Coated



Extractor :

- Aircraft Quality E4140 Steel

- Heat treated per Mil-Spec Requirements

- Shot Peened per Mil-Spec Requirements

- Manganese Phosphate Coated per Mil-Spec Requirements



Bolt Carrier Gas Key :

- 4130 material, chrome-lined, phosphate coated, staked gas key screws per Mil-Spec Requirements

- Carrier - 8620 material, chrome lined, phosphate coated

- Cam Pin - 4140 nickel boron coated

- Firing Pin - S7 Material and chromed Firing Pin Retainer
Mfg No: Ababcgnbb
Manufacturer: American Built Arms Company

Shipping Information
Weight: 0.75 pounds.
Dimensions: 7.5 (L) x 5 (W) x 1.25 (H) inches.:

191313

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