Image unavailable
308 Winchester /7.62mm Bolt Carrier Group For Ar .308 - .308 Winchester /7.62mm Bcg W/9310 Bolt Phosphate For Ar-308
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$209.99
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100019270
Overview
Built for AR .308 compatible rifles, this bolt carrier group serves as the core firing component for a .308 Winchester / 7.62mm big-bore build. It is offered with a Black Nitride finish and is also available in Nickel or Phosphate, giving builders options to match their setup. The carrier includes forward assist serrations, a properly staked gas key with Grade 8 hardware, and a laser-engraved Aero Precision logo or no-logo option. For hunters and rifle owners assembling a .308 platform, it is a practical choice when the goal is a complete, compatible BCG from a known component maker.
Why Hunters Choose the Aero Precision
Compatible Ar
AR .308 style uppers and
Mpi/hpt Inspection
Noted in the product description
Choice Black
Nitride, Nickel, or Phosphate finish
Gas Key
Grade 8 hardware and staking
Includes Forward
Assist serrations for AR .308
Key Features
- .308 / 7.62 bolt carrier group for AR-308 compatible uppers and rifles
- Black Nitride finish, with Nickel or Phosphate finish options listed
- Carrier machined from 8620 tool steel; bolt machined from 9310 steel
- MPI/HPT inspected and tested
- Gas key uses 4130 steel with Grade 8 hardware and proper staking
- Firing pin machined from 8740 steel with hard chrome coating
- Includes laser engraved Aero Precision A logo, with no-logo option available
Best Used For
- AR .308 builders needing a compatible bolt carrier group for a big-bore rifle setup.
- Hunters assembling a .308 Winchester or 7.62mm AR-style rifle platform.
- Users wanting a BCG with Black Nitride, Nickel, or Phosphate finish options.
- Builders who prefer an Aero Precision-marked component with laser engraved logo option.
Specifications
| Blade Finish | Black Nitride, Nickel or Phosphate |
|---|---|
| Bolt Material | 9310 Steel |
| Caliber | 308 Winchester /7.62mm |
| Carrier Material | 8620 Tool Steel |
| Firing Pin Coating | Hard chrome coated |
| Firing Pin Material | 8740 steel |
| Forward Assist Serrations | Yes |
| Gas Key Attachment | Properly staked |
| Gas Key Hardware | Grade 8 hardware |
| Gas Key Material | 4130 Steel |
| Laser Engraving | Aero Precision 'A' logo or No Logo option |
| Mpihpt | Yes |
| Platform Compatibility | AR .308 compatible style AR uppers and rifles |
Pros
- Compatible with AR .308 style uppers and rifles
- MPI/HPT inspection noted in the product description
- Choice of Black Nitride, Nickel, or Phosphate finish
- Gas key uses 4130 steel with Grade 8 hardware and staking
- Includes forward assist serrations for AR .308 builds
- Laser engraved Aero Precision logo or no-logo option available
Considerations & Trade-offs
- The finish is listed in multiple options, so the exact surface treatment depends on the version selected rather than being fixed across all units.
- This BCG is described as fitting AR .308 compatible style AR uppers and rifles, so compatibility should be verified against the specific build before purchase.
- The product details identify the carrier and bolt materials, but do not provide dimensions or weight, which may matter for builders matching parts to a specific setup.
- The laser-engraved Aero Precision logo is an included branding detail on some versions; buyers wanting a plain appearance should confirm the no-logo option is selected.
Suggested Comparisons
- AR .308 upper receivers
- AR-308 rifle build components
- Bolt carrier groups for .308 / 7.62 platforms
- AR-308 firing control parts
Suggested Accessories
- AR-308 upper receiver
- AR-308 lower receiver
- Cleaning kit
- Lubricant
Frequently Asked Questions
Is this bolt carrier group made for AR .308 / 7.62 builds?
Yes. The product is described as a .308 / 7.62 Bolt Carrier Group for AR .308 compatible style AR uppers and rifles.
What finish options are listed for this BCG?
The listed finish options are Black Nitride, Nickel, or Phosphate. The short description highlights the Black Nitride version.
What materials are specified for the carrier, bolt, gas key, and firing pin?
The carrier is machined from 8620 tool steel, the bolt from 9310 steel, the gas key from 4130 steel, and the firing pin from 8740 steel with a hard chrome coating.
Does the product mention any inspection or testing?
Yes. The description states that it is MPI/HPT.
Does this BCG include an Aero Precision logo?
Yes. The description says it now includes a laser engraved Aero Precision 'A' logo, and it also mentions a No Logo option.