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Questions & Answers
Would this BCG work with a .300 blackout set up?

YES this will work for any caliber that has the same size base as the .223, or 5.56X45 military rounds

by Ed, Verified Owner, August 16, 2021
Will this work on a Ar-9 ? Expert Answer

The DoubleStar M-16 Full-Auto Bolt Carrier Group is not compatible with an AR-9. Email us at Techsales@opricsplanet.com and let us know what AR9 you have (Brand, model, mag compatibility etc). That way we can more easily recommend a compatible BCG for your build.

by Ethan, Gear Expert, December 7, 2022
Color:
Black
Caliber:
5.56x45mm NATO
Gun Model:
M16
Hand:
Right
Condition:
New

Code: SR4-BCG-AR100M-AR100M

MPN: AR100M

UPC: 841348103318

List: $145.99Save 10%
$131.99

  • DoubleStar M-16 Full-Auto Bolt Carrier Group BCG, Black, AR100M
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $337.18
You Save Up to $28.80
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Product Info for DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG)

CompleteBolt Carrier group for M-16. made from 8620 Steel and coated per Mil-Spec. Assembly includes a staked gas key, chrome-lined carrier and gas key and bolt assembly. 9mm does not require bolt.image

WARNING: California`s Proposition 65

Specifications for DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG):

Manufacturer: DoubleStar
Color: Black
Fabric/Material: Steel
Carrier Material: 8620 Steel
Bolt Material: Steel
Caliber: 5.56x45mm NATO
Gun Model: M16
Hand: Right
Condition: New

Features of DoubleStar M-16 Full-Auto Bolt Carrier Group BCG

  • M16
  • Stripped/Assembly: Assembly
  • Complete w/bolt, bolt carrier and firing pin
  • Staked gas key
  • Chromed line carrier and gas key
  • Staked gas key

Package Contents:

  • DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG)

DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG) Orderable Models

List of Orderable Models

  • DoubleStar M-16 Full-Auto Bolt Carrier Group BCG, Black, AR100M , MPN: AR100M , UPC: 841348103318 , Code: SR4-BCG-AR100M-AR100M

DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG) Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, DoubleStar M-16 Full-Auto Bolt Carrier Group BCG, Black, AR100M , MPN: AR100M-DEMO , Code: SR4-BCG-AR100M-AR100M-DEMO-OB-A
  • USED, DoubleStar M-16 Full-Auto Bolt Carrier Group BCG, Black, AR100M , MPN: AR100M-EDEMO , Code: SR4-BCG-AR100M-AR100M-EDEMO-WP-B
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Last updated 2026-06-27 UTC.