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Bravo Company

M16 5.56 Bolt Carrier Group - M16 Bolt Carrier Group Fde

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Fully Assembled

BCMA(R) complete bolt carrier group

Auto-version M16/m4

Parkerized exterior and chrome-lined inside

Machined Usgi

Specifications for Mil-Spec compatibility

Includes Proper

Mil-Spec gas key, chrome lined

Gas Key

USGI domestic Grade 8 fasteners

$225.00
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SKU: 100020760

Overview

Built as a complete, fully assembled bolt carrier group for AR15, M16, or M4 platforms, this unit is intended for shooters who want a Mil-Spec-style component ready for installation. It features a parkerized exterior, a chrome-lined inside carrier, and a proper Mil-Spec gas key secured with Grade 8 fasteners and staking to Mil-Spec standards. The bolt assembly is machined from Carpenter No. 158A steel and shot peened, with a tool steel machined extractor included. For hunters and field users who value a straightforward, duty-oriented setup, it offers a practical foundation without unnecessary extras.

Why Hunters Choose the Bravo Company

Fully Assembled

Complete bolt carrier group for

Machined Usgi

Specifications for Mil-Spec compatibility

Includes Proper

Grade 8 fasteners and staking

Parkerized Exterior

Chrome-lined carrier interior

Bolt Assembly

Uses Mil-Spec Carpenter No. 158A

Key Features

  • Fully assembled BCMA(R) complete bolt carrier group for AR15, M16, or M4 platforms.
  • Auto-version M16/M4 carrier with parkerized exterior and chrome-lined inside carrier.
  • Machined to USGI specifications for Mil-Spec compatibility.
  • Includes proper Mil-Spec gas key, chrome lined and heat treated per GI specifications.
  • Gas key secured with USGI domestic Grade 8 fasteners and Mil-Spec staking.
  • Bolt assembly uses Mil-Spec Carpenter No. 158A(R) steel and is shot peened.

Best Used For

  • AR-15, M16, or M4 owners needing a fully assembled auto-style bolt carrier group
  • Users wanting a carrier group machined to USGI specifications with a Mil-Spec gas key
  • Builders prioritizing a parkerized exterior and chrome-lined carrier interior
  • Shooters looking for a complete bolt assembly with shot-peened, MPI-verified components
  • Those replacing a worn carrier group and wanting a direct-specification match

Specifications

Assembly Statusfully assembled
Bcg Typecomplete bolt carrier group
Blade FinishParkerized exterior
Bolt MaterialCarpenter No. 158A(R) steel
Bolt Treatmentshot peened
Carrier Interiorchrome lined
ColorFde
CompatibilityAR15, M16, or M4
Extractortool steel machined extractor
Gas Keyproper Mil-Spec gas key
Gas Key FastenersUSGI domestic mfg Grade 8 fasteners
Gas Key Finishchrome lined
Gas Key Heat Treatmentheat treated per GI specifications
Gas Key Stakingproperly staked per Mil-Specs
Manufacturing StandardUSGI specifications
Mpiyes
Versionauto version

Pros

  • Fully assembled complete bolt carrier group for AR15, M16, or M4 platforms.
  • Machined to USGI specifications for Mil-Spec compatibility.
  • Includes a proper Mil-Spec gas key secured with Grade 8 fasteners and staking.
  • Parkerized exterior with chrome-lined carrier interior.
  • Bolt assembly uses Mil-Spec Carpenter No. 158A steel and a tool steel machined extractor.
  • Shot peened bolt assembly and fully assembled construction simplify installation.

Considerations & Trade-offs

  • Auto-pattern M16/M4 configuration may not be appropriate for every AR15 setup, so compatibility should be confirmed before purchase.
  • The carrier is described with a parkerized exterior and chrome-lined inside carrier, which is a functional finish choice rather than a cosmetic one.
  • This is a complete, fully assembled bolt carrier group, so it offers less component-level customization than sourcing parts individually.
  • The product description emphasizes Mil-Spec and USGI-spec details, which may matter to buyers looking for a specific specification standard rather than a general-purpose BCG.

Suggested Comparisons

  • AR-15 bolt carrier group
  • M16/M4 bolt carrier group
  • Complete upper receiver components
  • AR-15 replacement parts

Suggested Accessories

  • Bolt carrier group cleaning kit
  • Gun oil or lubricant
  • AR-15/M4 maintenance kit
  • Armorers wrench

Frequently Asked Questions

What platforms is this bolt carrier group intended for?

It is described as a complete bolt carrier group for AR15, M16, or M4 platforms, and it is the auto version.

Is this BCG fully assembled?

Yes. The product description states that the BCMA(R) (MPI) complete bolt carrier group is fully assembled.

What finish and internal carrier treatment are listed?

The carrier is described as having a parkerized exterior and a chrome lined inside carrier.

What specifications does the gas key follow?

The carrier includes the proper Mil-Spec gas key. The gas key is described as chrome lined and heat treated per GI specifications, and it is secured with USGI domestic manufactured Grade 8 fasteners and properly staked per Mil-Specs.

What bolt material and treatments are mentioned?

The bolt assembly is described as machined from the correct Mil-Spec Carpenter No. 158A(R) steel, shot peened for increased strength, and it includes a tool steel machined extractor.