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M5e1 308 Winchester Assembled Upper Receiver W/Gen 2 Handguard - M5e1 308 Win Assembled Upper Fluted 18'''' Rifle Threaded Black
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$789.99
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SKU: 430103913
Overview
Built for a .308 Winchester AR-style setup, this assembled upper receiver is intended for shooters who want a ready-to-install foundation with the Gen 2 Enhanced Handguard already in place. It includes the enhanced upper receiver, 15" M-LOK handguard, low profile gas block, rifle-length gas tube, and .308 A2 birdcage flash hider, while leaving out the BCG and charging handle for users who prefer to select those separately. The enhanced handguard adds quick disconnect sling sockets, a revised milling design, and a new picatinny top rail profile, giving the assembly a more refined layout for field use or range work. Forged from 7075 T6 aluminum and supplied assembled, it offers a practical option for hunters and shooters building around Aero Precision’s M5E1 platform.
Why Hunters Choose the Aero Precision
Includes 15-inch
Enhanced M-LOK handguard for accessory
Comes Assembled,
Reducing setup time before installation
Quick Disconnect
Sling sockets for sling attachment
Uses Low
Profile gas block and rifle-length
Includes .308
A2 birdcage flash hider
Key Features
- Assembled M5E1 .308 Winchester upper receiver from Aero Precision
- Includes Gen 2 Enhanced 15-inch M-LOK handguard
- Features quick disconnect sling sockets on the handguard
- Comes with low profile gas block and rifle-length gas tube
- Includes .308 A2 birdcage flash hider
- Does not include BCG or charging handle
Best Used For
- Hunters building a .308 Winchester rifle around an assembled upper receiver and handguard package.
- Users who want a rifle-length gas system with included low-profile gas block and gas tube.
- Shooters planning to add their own BCG and charging handle to complete the upper.
- Those looking for a 15-inch M-LOK handguard with quick disconnect sling sockets.
- Builders who prefer a forged 7075 T6 aluminum upper from Aero Precision.
Specifications
| Assembled | Yes |
|---|---|
| Caliber | 308 Winchester |
| Flash Hider | .308 A2 Birdcage Flash Hider |
| Gas Block | Low Profile Gas Block |
| Gas Tube | Rifle Length Gas Tube |
| Handguard | 15" Enhanced M-LOK Handguard |
| Handguard Generation | Gen 2 Enhanced Handguard |
| Includes Bcg | No |
| Includes Charging Handle | No |
| Material | 7075 T6 aluminum |
| Sling Sockets | Quick disconnect sling sockets |
| Top Rail | Picatinny top rail |
| Upper Receiver Type | Assembled Upper Receiver |
Pros
- Includes a 15-inch Enhanced M-LOK handguard for accessory mounting.
- Comes assembled, reducing setup time before installation.
- Features quick disconnect sling sockets for sling attachment options.
- Uses a low profile gas block and rifle-length gas tube.
- Includes a .308 A2 birdcage flash hider.
- Forged from 7075 T6 aluminum for the upper receiver.
Considerations & Trade-offs
- This assembled upper does not include a BCG or charging handle, so those components must be selected separately before the build is complete.
- The 15" enhanced M-LOK handguard and rifle-length gas system are fixed as listed, which may limit flexibility if you prefer a different handguard length or gas setup.
- The .308 A2 birdcage flash hider is included, so any alternative muzzle device would require replacement rather than a simple add-on.
- As a complete assembled upper, it offers convenience but less component-level customization than sourcing each part individually.
Suggested Comparisons
- AR-10 / .308 Winchester upper receivers
- Complete upper assemblies
- Free-float handguard-equipped uppers
- AR platform parts and build components
Suggested Accessories
- Bolt carrier group
- Charging handle
- Optic mount
- Sling
Frequently Asked Questions
What is included with this assembled upper receiver?
It includes the M5E1 Enhanced Assembled Upper Receiver, a 15" Enhanced M-LOK Handguard, a low profile gas block, a rifle length gas tube, and a .308 A2 Birdcage Flash Hider.
Does this upper come ready to install as shown?
It comes assembled, but it does not include a BCG or charging handle.
What handguard is on this upper?
The product includes Aero Precision's Gen 2 Enhanced Handguard, listed here as a 15" Enhanced M-LOK Handguard.
What material is the upper receiver made from?
The M5E1 upper features are listed as forged from 7075 T6 aluminum.
Is this upper configured for .308 Winchester?
Yes. The product title and description identify it as a .308 Winchester upper receiver.