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Aero Precision

M5 .308 Win Assembled Upper Receiver No Auto Sear Cut For Ar15 - M5 .308 Win Assemb Upper Rcvr No Auto Sear Cut For Ar-15 Blk

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

Assembled M5

.308 Win upper receiver for

Includes Preinstalled

Port door and forward assist

Forged From

7075-T6 aluminum

Precision Machined

To accept standard .308 components

M4 Feedramps

Laser engraved T-marks

$194.99
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SKU: 430115457

Overview

Built for a .308 Win AR-pattern build, this assembled upper receiver provides a ready starting point for hunters and shooters putting together a big-bore rifle on the M5 platform. It arrives with the port door and forward assist hardware already installed, and it is precision machined to accept standard .308 components. The design includes M4 feedramps, laser-engraved T-marks, and DPMS High Profile (.210) tang compatibility, making it suited to a straightforward, parts-matched build. Pairing it with an M5 .308 lower receiver is the intended path for a solid, dependable fit.

Why Hunters Choose the Aero Precision

Includes Port

Door and forward assist hardware

Forged From

7075-T6 aluminum for a robust

Precision Machined

To accept standard .308 components

M4 Feedramps

Laser engraved T-marks are included

Dpms High

Profile (.210) tang specification is

Key Features

  • Assembled M5 .308 Win upper receiver for AR-15 platform builds
  • Includes preinstalled port door and forward assist hardware
  • Forged from 7075-T6 aluminum
  • Precision machined to accept standard .308 components
  • Features M4 feedramps and laser engraved T-marks
  • DPMS High Profile (.210) tang

Best Used For

  • Builders assembling an M5 .308 platform with standard .308 components and matched lower receivers.
  • Users wanting an assembled upper with port door and forward assist hardware already installed.
  • Hunters planning a big-bore AR build around the M5 platform and DPMS High Profile tang.
  • Shooters who prefer a forged, precision-machined upper for a .308 Win rifle project.

Specifications

2795 Takedown Pin Holestrue
Accepts Standard 308 Componentstrue
Assembledtrue
Dpms High Profile 210 Tangtrue
Forgedtrue
Includes Forward Assisttrue
Includes Port Doortrue
Laser Engraved T Markstrue
M4 Feedrampstrue
Made In AmericaYes
Material7075-T6 aluminum
No Auto Sear Cuttrue
PlatformM5
Precision Machinedtrue

Pros

  • Includes port door and forward assist hardware preinstalled for a more complete setup.
  • Forged from 7075-T6 aluminum for a robust upper receiver construction.
  • Precision machined to accept standard .308 components.
  • M4 feedramps and laser engraved T-marks are included.
  • DPMS High Profile (.210) tang specification is listed for compatibility reference.
  • Designed for the M5 platform and pairs with the M5 .308 lower receiver.

Considerations & Trade-offs

  • Designed for the M5 .308 platform, so it is not a universal upper for all AR-style builds.
  • The upper is assembled with the port door and forward assist hardware already installed, which reduces customization at the receiver level.
  • DPMS High Profile (.210) tang and .2795 takedown pin holes mean compatibility should be checked against the rest of the build before purchase.
  • No auto sear cut is specified, so it is intended for standard civilian use rather than configurations requiring that feature.

Suggested Comparisons

  • .308 AR upper receivers
  • AR-10 / large-frame AR upper components
  • AR-15 build parts
  • Upper receiver assemblies

Suggested Accessories

  • .308-compatible lower receiver
  • .308 components
  • M4 feedramps-compatible parts
  • Upper receiver vise block

Frequently Asked Questions

What comes preinstalled on this assembled upper receiver?

The upper comes with the port door and forward assist hardware preinstalled.

What platform is this upper receiver made for?

It is listed for the M5 platform.

What material is the upper receiver made from?

The product is described as forged from 7075-T6 aluminum.

Does this upper receiver include a no auto sear cut?

Yes. The product title states it is a "No Auto Sear Cut" upper receiver.

What compatibility or fit details are provided?

The description says it is precision machined to accept standard .308 components and notes that it matches with the M5 .308 lower receiver for a solid and dependable fit. It also lists M4 feedramps, .2795 takedown pin holes, laser engraved T-marks, and a DPMS High Profile (.210) tang.