Aero Precision M4E1-T 6.5 Grendel Features
The M4E1 upper receiver brings billet-style aesthetics and enhanced functionality to your build. Its precision forging blends seamlessly with Aero’s ATLAS handguards, and features like M4 feedramps, laser-engraved T-marks, and a port door with forward assist pre-installed elevate both form and function. The included ATLAS R-ONE handguard offers a lightweight, rigid design with QD sling sockets at the 3, 6, and 9 o’clock positions, a continuous Picatinny top rail, and M-LOK compatibility, making it ideal for modern tactical and competition builds.
The 6.5 Grendel 20-inch barrel is made from 416R stainless steel with a DMR profile, rifle-length gas system, and a 1:8 twist rate optimized for a wide range of bullet weights. The 5/8×24 threaded muzzle is fitted with a standard A2-style flash hider, and the barrel has undergone HP and MPI testing to ensure performance under pressure. Please note: this assembly does not include a BCG or charging handle, and requires a 6.5 Grendel bolt and magazine for proper function.
Aero Precision M4E1-T Upper 6.5 Grendel Specifications
- Manufacturer: Aero Precision
- Model: M4E1-T
- Caliber: 6.5 Grendel
- Barrel Length: 20″
- Barrel Material: 416R Stainless Steel
- Barrel Twist: 1:8
- Barrel Profile: DMR
- Gas System: Rifle Length
- Muzzle Thread: 5/8×24
- Muzzle Device: A2-Style Flash Hider
- Gas Block: .750 Low Profile
- Receiver Type: M4E1 Threaded
- Handguard: ATLAS R-ONE M-LOK
- Handguard Diameter: 1.3″ inside / 1.5″ outside
- Feedramps: M4 Feed Ramp Extension
- Compatibility: AR-15 Platform (6.5 Grendel BCG & Mag Required)
- Includes: Port Door & Forward Assist Installed
- Bolt Carrier Group: Not Included
- Charging Handle: Not Included
Frequently Asked Questions About This Product
Why buy Aero Precision M4E1-T Upper 6.5 Grendel 20" 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-T Upper 6.5 Grendel 20" 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-T Upper 6.5 Grendel 20" 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-T Upper 6.5 Grendel 20" Barrel
All firearms, including the Aero Precision M4E1-T Upper 6.5 Grendel 20" 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-T Upper 6.5 Grendel 20" 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.
