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M4e1 5.56 Assembled Upper Receiver Carbine W/G2 Handguard - M4e1 5.56 Nato Assem Uppr Rcvr M4 10.5'''' Bbl Carbine Black
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$534.99
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SKU: 100025505
Overview
Built for an AR-15 setup that needs a ready-to-go upper, this Aero Precision assembly arrives fully assembled except for the bolt/carrier group and charging handle. It pairs the M4E1 receiver with the Gen 2 Enhanced M-LOK handguard to create a stable platform for mounting accessories, while the full-length Picatinny top rail provides continuous space across the receiver and handguard. The design blends a custom billet-style appearance with forged-receiver compatibility, making it a practical choice for hunters and shooters who want a configurable carbine upper without starting from scratch.
Why Hunters Choose the Aero Precision
Fully Assembled
Upper receiver saves setup time,
Gen 2
Enhanced M-LOK handguard provides extensive
Full-length Picatinny
Top rail supports optics and
M4e1 Receiver
Forged-receiver parts compatibility
Aero Precision
Branding and M4E1 platform appeal
Key Features
- Fully assembled 5.56mm carbine upper receiver
- Includes Aero Precision Gen 2 Enhanced M-LOK handguard
- Full-length Picatinny top rail extends across receiver and handguard
- Supplied without bolt carrier group and charging handle
- Combines custom billet styling with mil-spec parts compatibility
Best Used For
- Hunters building a compact AR upper with extensive accessory-mounting options
- Users who want a fully assembled upper minus bolt carrier group and charging handle
- AR-15 owners seeking a receiver with forged-parts compatibility and custom billet styling
- Shooters planning a carbine setup with a full-length Picatinny top rail and M-LOK handguard
Specifications
| Assembly Status | Fully assembled |
|---|---|
| Blade Finish | Black |
| Caliber | 5.56mm |
| Cartridge | 5.56 NATO |
| Configuration | Carbine upper receiver |
| Handguard | Gen 2 Enhanced M-LOK Handguard |
| Included Components | Bolt/carrier group and charging handle not included |
| Platform | AR-15 |
| Receiver Type | M4E1 upper receiver |
| Top Rail | Full-length Picatinny top rail |
Pros
- Fully assembled upper receiver saves setup time, minus bolt carrier group and charging handle.
- Gen 2 Enhanced M-LOK handguard provides extensive accessory-mounting space.
- Full-length Picatinny top rail supports optics and other rail-mounted accessories.
- M4E1 receiver offers a custom billet look with forged-receiver parts compatibility.
- Aero Precision branding and M4E1 platform appeal to AR-15 builders seeking customization.
Considerations & Trade-offs
- Requires a separate bolt carrier group and charging handle, so it is not a complete upper out of the box.
- The description emphasizes accessory-mounting capability, which may add more setup and accessory decisions than a simpler, lighter configuration.
- Its 10.5-inch barrel configuration is compact, but that format may not suit buyers looking for a longer carbine setup.
- The product is presented as a tactical upper receiver, so it is best matched to users who specifically want an AR-15-style platform and compatible components.
Suggested Comparisons
- AR-15 upper receivers
- Complete upper assemblies
- M-LOK handguard systems
- Carbine-length upper configurations
Suggested Accessories
- AR-15 bolt carrier group
- Charging handle
- M-LOK accessories
- Picatinny rail accessories
Frequently Asked Questions
What comes assembled with this upper receiver?
The upper receiver comes fully assembled, minus the bolt carrier group and charging handle.
Does this upper include a handguard?
Yes. It comes with Aero Precision's Gen 2 Enhanced M-LOK handguard installed.
Is there a full-length top rail for optics and accessories?
Yes. The description states that the full-length Picatinny top rail runs from the rear of the receiver across the entire length of the handguard.
Is this upper compatible with standard AR-15 parts?
The description says Aero's M4E1 receiver offers 'mil-spec' parts compatibility. It does not provide additional compatibility details beyond that.
What is the barrel length on this upper?
The product title lists a 10.5-inch barrel. No other barrel specifications are provided in the supplied data.