User Ratings
No ratings yet
Be the first to review this product
Get your .458 SOCOM or 450 Bushmaster AR-15 running perfectly with the Brownells M16 .458 SOCOM/450 Bushmaster Bolt Carrier Group, which features construction and finishing designed to provide the best possible performance in your rifle.
Features:
- Bolt head built using 9310 steel, which undergoes heat treatment and shot peening for a durable finish.
- Carrier made using 8620 steel that undergoes hardening after machining.
- Undergoes magnetic particle inspection.
- Extractor construction includes rubber insert and spring.
- Increased corrosion resistance offered through black-nitride finish.
- Features torqued and staked gas key.
The Brownells M16 .458 SOCOM/450 Bushmaster Bolt Carrier Group provides users with a complete assembly, also including a firing pin, cam pin, and a firing pin retaining pin.
Specifications
- Manufacturer:
- Brownells
- Category:
- bolt-carrier-group
- Platforms:
- AR-15
- UPC:
- 050806112315
- MPN:
- AZT-M4-458-ST-002
- 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
Current
$106.99
Lowest
$87.33
Highest
$110.99
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
$119.99
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
Toolcraft Non-Logoed Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$109.99
Faxon Firearms Bolt Carrier Group, Black - Precision Bolt Carrier Group for Superior Performance
Faxon Firearms
$155.99
Bravo Company Bolt Carrier Group, Flat Dark Earth
Bravo Company Manufacturing (BCM)
$222.99
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