Aero Precision M4E1 Threaded Complete Upper Features
The 16-inch barrel is constructed from 4150 CrMoV steel with a QPQ finish for enhanced durability and corrosion resistance. It features a mid-length gas system and a 1:7 twist rate, making it versatile for a wide range of ammunition. The ATLAS R-ONE handguard provides a slim profile, full M-LOK compatibility, and a lightweight design while maintaining strength. Its quick disconnect sling sockets at multiple positions add convenience for versatile sling setups.
The M4E1 threaded upper receiver is designed with an enhanced forging for a “billet look” and includes laser-engraved T-marks, M4 feed ramps, and a pre-installed port door and forward assist. This product does not include a BCG or charging handle, giving users flexibility to customize their build.
Aero Precision M4E1 Threaded Complete Upper Specifications
- Manufacturer: Aero Precision
- Model: M4E1 Threaded Complete Upper Receiver
- Cartridge: 5.56 NATO
- Barrel Length: 16″
- Gas System: Mid-Length
- Barrel Material: 4150 CrMoV Steel
- Handguard: 15″ ATLAS R-ONE, M-LOK Compatible
- Receiver: M4E1 Threaded, Anodized Black
- Gas Block: Low Profile, .750″ Journal
- Thread Pattern: 1/2×28 (A2 Flash Hider Installed)
- Twist Rate: 1:7
- Features:
- M4 Feedramps
- Laser Engraved T-Marks
- Port Door and Forward Assist Pre-Installed
- Lightweight ATLAS R-ONE Handguard (1.3″ ID, 1.5″ OD)
- Quick Disconnect Sling Sockets
Frequently Asked Questions About This Product
Why buy Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: RIFLES, Uppers.
What tags or features does this product have?
Key features and tags for this product include: RIFLES, Uppers.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel
All firearms, including the Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Aero Precision M4E1 Threaded Complete Upper 5.56 16" Barrel is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
