American Built Arms Bolt Carrier Group AR-15 223 Remington, 5.56x45mm Nickel Boron

  • Product #: 157448
  • American Built Arms #: ABABCGNiB
  • UPC #: 859143003535
American Built Arms Bolt Carrier Group AR-15 223 Remington, 5.56x45mm Nickel Boron
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MSRP: $179.99
Ships 05/28/2019 from MidwayUSA

Product Overview


  • Heat treated, shot peened, nickel boron Bolt
  • M-16 style, nickel boron, 8620 steel Bolt Carrier
  • Mil-Spec, nickel boron coated, 4130 steel Gas Key
  • Heat treated, nickel boron coated, 4340 steel Cam Pin
  • Heat treated, shot peened, E4140 steel with manganese phosphate coated Extractor
  • Chrome lined, AISI 8740 steel Firing Pin

American Built Arms A*B Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensions. The Nickel Boron coated Bolt and Cam Pin needs virtually no lube during use. The Nickel Boron coated Carrier is coated for extra lubricity and the phosphate coated extractor has a surface finish that provides superior extraction during firing. These Bolt Carrier Groups are ready to drop into your rifle. American Built Arms’ Bolt Carrier Groups are specially made on high end Swiss machinery to have exacting tolerances and surface finish. 



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Product Information

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Delivery Information

Must Ship to FFL Dealer Yes
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Ships Alone Yes
Oversized Yes
DOT- Regulated Yes
Carrier Restrictions
  • Cannot ship via air
  • Cannot ship via USPS
  • Cannot ship to PO Box
  • Must ship to Contiguous US
HazMat Product Yes

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