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M4e1 Threaded 350 Legend Assembled Upper Receiver - M4e1 350 Legend Assembled Upper Dmr 16'''' Carbine Threaded Blk
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$549.99
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SKU: 430103073
Overview
Built for hunters and shooters assembling a .350 Legend AR setup, this assembled upper receiver provides a ready starting point for a carbine-length build. It includes the port door and forward assist already installed, while leaving out the charging handle and bolt carrier group so you can finish the rifle with your preferred components. The enhanced forging gives it a billet-like appearance, and the threaded design pairs with Aero Precision’s Enhanced Series handguards through the matching Picatinny profile. With M4 feedramps, .250 takedown pin holes, and laser-engraved T-marks, it is suited to a practical, purpose-driven rifle build.
Why Hunters Choose the Aero Precision
Enhanced Forging
Gives the upper receiver a
Picatinny Profile
Enhanced Series Handguards
M4 Feedramps
Are included in the upper
Laser Engraved
T-marks support straightforward optic and
Port Door
Forward assist come installed from
Key Features
- M4E1 threaded upper receiver from Aero Precision
- Enhanced forging gives the upper receiver a billet-like appearance
- New Picatinny profile blends with Enhanced Series Handguards
- Includes M4 feedramps and .250 takedown pin holes
- Laser engraved T-marks are included
- Port door and forward assist come installed
- Charging handle and bolt carrier group are not included
Best Used For
- Hunters building a .350 Legend setup with an assembled upper receiver
- Users wanting a threaded upper compatible with Enhanced Series Handguards
- Shooters who prefer an upper with port door and forward assist installed
- Builders needing a receiver with laser engraved T-marks and M4 feedramps
Specifications
| Blade Finish | Black |
|---|---|
| Bolt Carrier Group | Not included |
| Caliber | 350 Legend |
| Charging Handle | Not included |
| Feedramps | M4 Feedramps |
| Forward Assist | Included |
| Handguard Compatibility | Enhanced Series Handguards |
| Port Door | Included |
| T Marks | Laser engraved |
| Takedown Pin Hole Size | .250 |
| Threaded | Yes |
| Upper Receiver Type | Assembled Upper Receiver |
Pros
- Enhanced forging gives the upper receiver a billet-like appearance
- Picatinny profile blends seamlessly with Enhanced Series Handguards
- M4 feedramps are included in the upper receiver design
- Laser engraved T-marks support straightforward optic and accessory setup
- Port door and forward assist come installed from the factory
- Threaded upper is offered in a 350 Legend configuration
Considerations & Trade-offs
- Does not include a charging handle or bolt carrier group, so those components must be sourced separately before the upper is ready to use.
- This is a threaded upper receiver, so compatibility with your existing setup should be verified before purchase.
- The description emphasizes the receiver and rail interface features; it does not provide barrel, handguard, or complete build details.
- The product is configured around Aero Precision's Enhanced Series handguard profile, which may matter if you are matching existing parts.
Suggested Comparisons
- AR-15 upper receivers
- 350 Legend complete upper assemblies
- AR-15 handguards
- Charging handles and bolt carrier groups
Suggested Accessories
- Charging handle
- Bolt carrier group
- Upper receiver handguard
- Magazine
Frequently Asked Questions
What comes included with this M4E1 threaded upper receiver assembly?
The upper includes the port door and forward assist installed. It does not include a charging handle or bolt carrier group.
Is this upper receiver ready to be used as-is on a complete build?
It is an assembled upper receiver, but the source data says it does not include a charging handle or bolt carrier group, so those components would still be needed.
What features are listed for the M4E1 upper receiver?
Listed features include an enhanced forging with a billet look, a new Picatinny profile that blends with Enhanced Series handguards, M4 feedramps, .250 takedown pin holes, and laser engraved T-marks.
Does this upper receiver have a threaded design?
Yes. The product title identifies it as a threaded upper receiver.
Who makes this upper receiver?
The manufacturer listed in the source data is Aero Precision.