User Ratings
No ratings yet
Be the first to review this product
BRG 5.56mm/.223 Complete Bolt Carrier Groups
- Magnetic particle inspected MPI to ASTM E1444 aircraft quality inspection standards for molecular soundness and longer life of all the below-mentioned metal parts
- Fabric/Material: 8620 Steel
- Caliber: 5.56mm, .223 Remington
- Gun Make: AR Platform
- Gun Model: AR-15
- Hand: Right
- Carrier: 8620 (20NiCrMo2-2), heat treated (case hardened to SAE-AMS-6875), QPQ nitride finish
- Bolt: 14NiCr14, heat treated (case hardened to SAE-AMS-6875), QPQ nitride finish
- Extractors: Aircraft quality alloy steel, shot peened; heat treated to SAE-AMS-6875; phosphated to MIL-STD-171
- Gas Key: 4130, aircraft quality steel, heat treated to SAE-AMS-6875; QPQ HT PROCESS
- Cam Pins: Precision machined; heat treated to SAE-AMS-6875; phosphated to MIL-STD-171
- Firing Pin: Machined and precision ground; heat treated per SAE-AMS-6875; chrome lined
- Firing Pin Retaining Pin: Stainless steel pin
- Ejector: Precision machined; heat treated to SAE-AMS-6875; phosphated to MIL-STD-171
- Gas Rings: 3 pc. stainless steel per Mil-Spec
- Package Contents: BRG 5.56mm/.223 Complete Bolt Carrier Groups
- Compatibility: AR-15
Specifications
- Manufacturer:
- Brg
- Category:
- bolt-carrier-group
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- UPC:
- 689481713779
- MPN:
- BCG556BRG
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
No Price History Available
Check back later for pricing trends
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertBundle Package
This is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.
• Complete assembly ready to use
• Multiple components included
• Value package pricing
Similar Products
Bravo Company Bolt Carrier Group, Black
Bravo Company Manufacturing (BCM)
$238.99
Toolcraft Logo'd Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$109.99
Bravo Company Bolt Carrier Group, Flat Dark Earth
Bravo Company Manufacturing (BCM)
$222.99
Microbest PSA Custom Fathers of Freedom 5.56 NATO Full Auto Profile Phosphate Bolt Carrier
Microbest
$134.95
Aero Precision M16 / AR-15 Bolt Carrier Group - Parkerized - No Logo
Aero Precision
$126.84
M16 5.56 Bolt Carrier Group
Colt
$196.12
Aero Precision 5.56 Bolt Carrier Group, Complete - Nickel Boron - APRH100071C
Aero Precision
$188.99
Toolcraft Non-Logoed Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$109.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5 min read
Guide
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
6 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read