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JL Billet Bolt Carrier Group Up to 10% Off w/ Free S&H — 2 models

Special offer available for this product. Click here to see!
JL Billet Bolt Carrier Group, 5.56 Black Nitride, Black, JLB-AR15-BCG-BN
JL Billet Bolt Carrier Group, .308 Black Nitride, Black, JLB-308-BCG-BN
JL Billet Complete Bolt Carrier Group BCG, .308, Black, JLB-308-BCG-BN
JL Billet Bolt Carrier Group, 5.56 Black Nitride, Black, JLB-AR15-BCG-BN
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JL Billet Bolt Carrier Group, 5.56 Black Nitride, Black, JLB-AR15-BCG-BN
JL Billet Bolt Carrier Group, .308 Black Nitride, Black, JLB-308-BCG-BN
2 of 3 images
JL Billet Bolt Carrier Group, .308 Black Nitride, Black, JLB-308-BCG-BN
JL Billet Complete Bolt Carrier Group BCG, .308, Black, JLB-308-BCG-BN
3 of 3 images
JL Billet Complete Bolt Carrier Group BCG, .308, Black, JLB-308-BCG-BN

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  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $340.19
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Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for JL Billet Bolt Carrier Group

Black Nitride Bolt Carrier Group with MPI Boltimage

WARNING: California`s Proposition 65

Specifications for JL Billet Bolt Carrier Group:

Manufacturer: JL Billet
Color: Black
Finish: Black Nitride
Fabric/Material: Carpenter 158 Steel
Carrier Material: 8620 Steel
Bolt Material: Steel
Hand: Right
Weight: 1 lb
Country of Origin: USA

Features of JL Billet Bolt Carrier Group

  • MPI Bolt (Magnetic Particle Inspected)
  • Carpenter 158 steel bolt (black nitride)
  • Shot peened firing pin
  • Grade 8 hardened fasteners
  • 8620 heat treated carrier, polished w/black nitride coating
  • Key staked per Mil-Spec

Package Contents:

  • JL Billet Bolt Carrier Group

What firearm models does the manufacturer say JL Billet Bolt Carrier Group is compatible with?

The manufacturer says that JL Billet Bolt Carrier Group is compatible with AR-15, AR-10

JL Billet Bolt Carrier Group Orderable Models

List of Orderable Models

  • JL Billet Bolt Carrier Group, .308 Black Nitride, Black, JLB-308-BCG-BN , MPN: JLB-308-BCG-BN , UPC: 617407024678 , Code: 3KR-BCG-JL556BCG-JLB-308-BCG-BN
  • JL Billet Bolt Carrier Group, 5.56 Black Nitride, Black, JLB-AR15-BCG-BN , MPN: JLB-AR15-BCG-BN , UPC: 617407024661 , Code: 3KR-BCG-JL556BCG-JLB-AR15-BCG-BN
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Last updated 2026-07-01 UTC.