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5.56mmx45 Nato Bolt Carrier Group For Ar-15 - 5.56 Bcg W/158 Bolt W/Logo Chrome Lined Phosphate For Ar-15
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$149.99
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SKU: 100054336
Overview
Built for AR-15 builds chambered in 5.56 NATO, this bolt carrier group is a core component for assembling or replacing the operating group in a compatible rifle. It features an M16-cut carrier, forward assist serrations, and a properly staked gas key, with a chrome-lined gas key and bolt channel and a mil-spec phosphate coating on the carrier. The 5.56 bolt is machined from Carpenter 158 tool steel, shot peened, and HPT tested/MPI marked, with a black o-ring insert on the extractor. Available with or without the “A” logo, it is a straightforward option for shooters who want a complete BCG for a serious AR-15 setup.
Why Hunters Choose the Aero Precision
M16-cut Carrier
Forward assist serrations for AR-15
Properly Staked
Chrome-lined gas key and bolt
5.56 Bolt
Machined from Carpenter 158 tool
Shot Peened
HPT tested/MPI marked for documented
Mil-spec Phosphate
Coating on the chrome lined
Key Features
- Bolt carrier group for AR-15 builds chambered in 5.56mmx45 NATO.
- Available with or without the Aero “A” logo.
- M16-cut carrier with forward assist serrations.
- Carrier machined from 8620 steel with mil-spec phosphate coating.
- Properly staked gas key with chrome-lined gas key and bolt channel.
- 5.56 bolt machined from Carpenter 158 tool steel, shot peened, HPT tested, and MPI marked.
Best Used For
- AR-15 builders seeking a 5.56 bolt carrier group with listed Mil-Spec-style features
- Users wanting an M16-cut carrier with forward assist serrations for a compatible build
- Shooters prioritizing a chrome-lined, phosphate-coated BCG option with an Aero Precision logo choice
- Builders who want a bolt carrier group with HPT tested and MPI marked components
- Those assembling a 5.56 AR-15 and needing a properly staked gas key setup
Specifications
| Bolt Carrier Group Type | 5.56 Chrome Lined Phosphate BCG |
|---|---|
| Bolt Material | Carpenter 158 tool steel |
| Bolt Material Nickel Boron Bcg | 9310 Steel |
| Bolt Treatment | Shot peened |
| Caliber | 5.56mmx45 NATO |
| Carrier Coating | Mil-Spec phosphate coating |
| Carrier Cut | M16-cut carrier |
| Carrier Features | Forward assist serrations |
| Carrier Material | 8620 steel |
| Carrier Material Nickel Boron Bcg | 8620 Tool Steel |
| Compatibility | AR-15 |
| Extractor Insert | Black o-ring insert |
| Gas Key | Properly staked gas key |
| Gas Key And Bolt Channel | Chrome lined |
| Logo Option | Available with or without "A" Logo |
| Nickel Boron Option | High quality BCG 5.56 NICKEL BORON BCG |
| Testingmarking | HPT tested/MPI marked |
| Weight | 11.52 oz. |
Pros
- M16-cut carrier with forward assist serrations for AR-15 compatibility.
- Properly staked gas key with chrome-lined gas key and bolt channel.
- 5.56 bolt machined from Carpenter 158 tool steel.
- Shot peened and HPT tested/MPI marked for documented inspection.
- Mil-Spec phosphate coating on the chrome lined phosphate version.
- Available with or without Aero 'A' logo for build preference.
Considerations & Trade-offs
- This is a 5.56 NATO BCG for AR-15 builds, so it is intended for compatible setups rather than a universal bolt carrier group.
- The product is offered in more than one configuration, including chrome lined phosphate and nickel boron variants, so finish and component details should be confirmed before ordering.
- Logo availability varies by option, with the listing noting versions with or without the Aero "A" logo.
- At 11.52 oz., it may not match the weight preference of every build, so buyers should verify it fits their intended configuration.
Suggested Comparisons
- AR-15 complete upper receiver assembly
- AR-15 bolt carrier group with alternate finish
- AR-15 bolt and bolt parts kit
- AR-15 lower parts kit
Suggested Accessories
- AR-15 charging handle
- AR-15 magazine
- AR-15 cleaning kit
- AR-15 upper receiver parts
Frequently Asked Questions
What is included in this bolt carrier group listing?
The listing describes a 5.56mmx45 NATO bolt carrier group for AR-15 builds from Aero Precision. It is offered in a chrome lined phosphate version, with an option for an "A" logo or no logo depending on the variant shown in the source data.
What materials are specified for the carrier and bolt?
For the chrome lined phosphate version, the carrier is machined from 8620 steel and the 5.56 bolt is machined from Carpenter 158 tool steel. The source also mentions a nickel boron BCG variant with a carrier machined from 8620 tool steel and a bolt made from 9310 steel.
Does this BCG have an M16-cut carrier?
Yes. The source specifically states that it uses an M16-cut carrier.
What finish and key features are listed for the chrome lined phosphate version?
The chrome lined phosphate version is described as having a mil-spec phosphate coating, a properly staked gas key, chrome lined gas key and bolt channel, forward assist serrations on the carrier, a black o-ring insert on the extractor, and HPT tested/MPI marked bolt.
What is the listed weight of this bolt carrier group?
The source lists the weight as 11.52 oz.