Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Ar .308 Upper Parts Kit

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

Includes Parts

Needed to assemble an M5

Contains Forward

Assist assembly for upper receiver

Includes Forward

Assist spring and roll pin

Includes Ejection

Port cover door, rod, and

Made Aero

Precision

$22.99
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SKU: 100054424

Overview

Built for assembling an M5 (.308) upper receiver, this Aero Precision parts kit provides the core components needed to complete that portion of the build. It includes a forward assist assembly, spring, and roll pin, along with the ejection port cover door, rod, and spring. The kit is aimed at builders who want the necessary upper receiver parts in one package rather than sourcing each piece separately.

Why Hunters Choose the Aero Precision

Includes Parts

Needed to assemble an M5

Covers Forward

Assist assembly, spring, and roll

Includes Ejection

Port cover door, rod, and

Made Aero

Precision, a recognized firearms parts

Straightforward Parts

Set for completing an upper

Key Features

  • Includes parts needed to assemble an M5 (.308) upper receiver.
  • Contains a forward assist assembly for upper receiver assembly.
  • Includes forward assist spring and roll pin.
  • Includes ejection port cover door, rod, and spring.
  • Made by Aero Precision.

Best Used For

  • Builders assembling an Aero Precision M5 (.308) upper receiver from compatible parts
  • Users replacing missing forward assist or ejection port cover components during assembly
  • Armorers and hobbyists wanting a straightforward upper receiver parts kit for .308 builds
  • Shooters completing a parts inventory for an M5 upper receiver project

Specifications

Compatible ReceiverM5 (.308) Upper Receiver
Ejection Port Cover DoorIncluded
Ejection Port Cover RodIncluded
Ejection Port Cover SpringIncluded
Forward Assist AssemblyIncluded
Forward Assist Roll PinIncluded
Forward Assist SpringIncluded

Pros

  • Includes the parts needed to assemble an M5 .308 upper receiver.
  • Covers forward assist assembly, spring, and roll pin in one kit.
  • Includes ejection port cover door, rod, and spring for assembly.
  • Made by Aero Precision, a recognized firearms parts manufacturer.
  • Straightforward parts set for completing an upper receiver build.

Considerations & Trade-offs

  • This kit is specific to the M5 (.308) upper receiver, so it is not a universal upper parts solution.
  • It covers the forward assist and ejection port cover components only; additional upper receiver parts must be sourced separately.
  • The listing does not specify whether the parts are compatible with other Aero Precision platforms or non-Aero builds, so fit should be verified before purchase.

Suggested Comparisons

  • AR-10 / .308 upper receiver parts kits
  • Upper receiver assembly components
  • Forward assist replacement parts
  • Ejection port cover parts

Suggested Accessories

  • Upper receiver assembly tools
  • Armorer's wrench
  • Punch set
  • Bench vise

Frequently Asked Questions

What is included in the Aero Precision Ar .308 Upper Parts Kit?

The kit includes a Forward Assist Assembly, Forward Assist Spring, Forward Assist Roll Pin, Ejection Port Cover Door, Ejection Port Cover Rod, and Ejection Port Cover Spring.

What upper receiver is this parts kit intended for?

It is described as the parts needed to assemble an M5 (.308) Upper Receiver.

Does this kit include a complete upper receiver?

No. The description identifies it as an upper parts kit, not a complete upper receiver.

Is this kit specific to Aero Precision?

Yes. The manufacturer listed is Aero Precision.

Are any material, size, or performance details provided for these parts?

No. The provided data lists the included components and intended receiver type, but does not specify materials, dimensions, or performance characteristics.