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Questions & Answers
Is the Bolt material I think Carpenter 158? I'm pretty sure it is Expert Answer

Yes. The DoubleStar AR-15 5.56 Bolt Carrier Group with O-Ring features a 158 carpenter steel bolt and 8620 steel carrier.

by Ethan, Gear Expert, June 14, 2022
Color:
Black
Finish:
Phosphate
Fabric/Material:
8620 Alloy Steel
Caliber:
5.56x45mm NATO
Gun Model:
AR-15
Condition:
New
Included Accessories:
Bolt Assembly, Cam Pin, Complete Carrier, Firing Pin, Retaining Pin

Code: SR4-BCG-AR100

MPN: AR100

UPC: 841348103301

Product No Longer Available

Product Info for DoubleStar AR-15 5.56 Bolt Carrier Group (BCG) with O-Ring

The Doublestar AR15 5.56 Caliber Bolt Carrier Group BCG comes with bolt and firing pin, so it's ready to drop in to the rifle or carbine of your choice. These Bolt Carrier Groups manufactured by DoubleStar are tested and inspected to ensure they are free of imperfections that could lead to premature failures. The staked, chrome-lined gas key of the Doublestar AR15 5.56 BCG prevents gas leakage that can lead to short stroking. Get years of dependable performance from the Doublestar AR15 Bolt Carrier Group BCG.image

Features of Doublestar AR-15 5.56 Bolt Carrier Group BCG with O-Ring

  • Bolt carrier assembly w/O ring
  • 8620 Steel
  • Coated per Mil-Spec
  • Chrome lined carrier key and bolt assembly

Package Contents:

  • DoubleStar AR-15 5.56 Bolt Carrier Group (BCG) with O-Ring

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DoubleStar AR-15 5.56 Bolt Carrier Group (BCG) with O-Ring Unavailable & Discontinued Models

List of Unorderable Models

  • DoubleStar AR-15 5.56 Bolt Carrier Group BCG with O-Ring, Black, AR100 , MPN: AR100 , UPC: 841348103301 , Code: SR4-BCG-AR100
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