The Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE Made a Bold First Impression
The Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE isn’t just another AR-15 upper; it’s a dedicated hunting and target shooting platform chambered in the increasingly popular 350 Legend cartridge. Aero Precision is known for quality AR components, and this upper promised to deliver accuracy and reliability in a purpose-built package.
I needed a dedicated upper for deer hunting in my state, where regulations limit the use of bottleneck cartridges. The 350 Legend’s straight-walled design and impressive ballistics within 200 yards made it an ideal choice, and Aero Precision’s reputation sealed the deal.
Upon unboxing, the Flat Dark Earth (FDE) Cerakote finish immediately caught my eye. The assembled upper felt solid and well-built, and the M4E1 enhanced forging gave it a premium, billet-like appearance.
Compared to other uppers I’ve used, like a standard 5.56 mil-spec upper or a lightweight hunting upper in .223 Wylde, the Aero Precision felt noticeably more robust. I chose this over a complete rifle from another manufacturer, believing I could get better quality control and the specific features I wanted, such as the 20″ barrel.
My first impression was definitely excitement. The FDE Cerakote finish and overall fit and finish screamed quality, and I couldn’t wait to see how it performed at the range.
Real-World Testing: Putting Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE to the Test
First Use Experience
I first tested the Aero Precision M4E1 upper at my local outdoor shooting range. It was a sunny day with a slight breeze, perfect conditions for zeroing the scope and getting a feel for the 350 Legend cartridge.
The upper performed flawlessly, with consistent cycling and no malfunctions. The longer 20″ barrel provided a noticeable increase in velocity compared to shorter barrels I’ve used with other cartridges, and the recoil was surprisingly manageable.
The M4 feedramps ensured smooth feeding of the 350 Legend rounds, even with various bullet profiles. There was no significant learning curve; it was simply a matter of attaching it to my existing lower and mounting my optic.
Extended Use & Reliability
After several weeks of use, including multiple range sessions and a deer hunt, the Aero Precision M4E1 upper has held up exceptionally well. The Cerakote finish has proven to be durable and resistant to scratches and wear.
I’ve also taken it out in light rain, and the QPQ (Quench Polish Quench) treatment on the barrel has prevented any signs of corrosion. Maintenance is straightforward; a simple wipe-down after each use is usually sufficient.
Compared to my previous hunting rifle, this setup provides a more modern and customizable platform. The Aero Precision upper has exceeded my expectations in terms of accuracy and reliability with the 350 Legend cartridge.
Breaking Down the Features of Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE
Specifications
The Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE boasts several key specifications. It is chambered in 350 Legend, features a 20″ QPQ coated barrel, and is finished with a Flat Dark Earth Cerakote.
The upper receiver is an M4E1 enhanced model, featuring a unique forging that provides a more robust and aesthetically pleasing design. The M4 feedramps ensure reliable feeding, and the upper comes fully assembled with a port door and forward assist installed.
Performance & Functionality
The Aero Precision M4E1 upper performs admirably, delivering excellent accuracy and reliable cycling with the 350 Legend cartridge. The longer barrel helps maximize the velocity of the 350 Legend, extending its effective range.
The enhanced M4E1 receiver provides a solid foundation for mounting optics. One minor weakness is the lack of a handguard, requiring the user to purchase one separately to complete the build.
The upper meets and exceeds expectations for a dedicated hunting and target shooting platform. It is a well-built and accurate upper that provides a modern alternative to traditional hunting rifles.
Design & Ergonomics
The Aero Precision M4E1 upper features a sleek and modern design. The FDE Cerakote finish provides a durable and attractive coating.
The enhanced forging of the receiver gives it a premium feel, and the assembled nature of the upper makes it easy to install and use. There is virtually no learning curve, especially for those familiar with the AR-15 platform.
Durability & Maintenance
The Aero Precision M4E1 upper is built to last, with high-quality materials and a durable Cerakote finish. The QPQ coating on the barrel provides excellent corrosion resistance.
Maintenance is simple, requiring only basic cleaning after each use. The upper should provide years of reliable service with proper care.
Accessories and Customization Options
The Aero Precision M4E1 upper readily accepts standard AR-15 accessories. This includes handguards, optics, and charging handles.
It is compatible with a wide range of aftermarket parts, allowing for extensive customization. The upper receiver also features laser engraved T-marks for easy optic mounting and adjustments.
Pros and Cons of Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE
Pros
- Excellent Accuracy: The 20″ barrel and quality construction contribute to impressive accuracy with the 350 Legend cartridge.
- Durable Finish: The FDE Cerakote finish provides excellent protection against wear and corrosion.
- Enhanced M4E1 Receiver: The enhanced forging offers a more robust and aesthetically pleasing design.
- Reliable Feeding: The M4 feedramps ensure smooth and consistent feeding of 350 Legend rounds.
- Easy Installation: The assembled upper is easy to install on any compatible AR-15 lower receiver.
Cons
- No Handguard Included: The upper does not come with a handguard, requiring an additional purchase.
- Limited Cartridge: The 350 Legend, while excellent within its range, is less versatile than other AR-15 calibers.
Who Should Buy Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE?
This upper is perfect for hunters in states with straight-walled cartridge restrictions. It’s also ideal for target shooters looking for a reliable and accurate 350 Legend platform.
Those seeking a multi-purpose AR-15 that can be used for various applications might want to skip this product. A must-have accessory is a quality handguard, which will improve comfort and provide mounting points for accessories.
Conclusion on Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE
The Aero Precision M4E1 Threaded Assembled Upper 350 Legend 20″ QPQ Carbine FDE is an excellent choice for anyone looking for a dedicated 350 Legend upper. Its accuracy, durability, and enhanced features make it a worthwhile investment.
The price is justified by the quality of construction and the performance it delivers. I would highly recommend this upper to anyone who needs a reliable and accurate 350 Legend platform for hunting or target shooting.
Consider adding the Aero Precision M4E1 upper to your arsenal; you won’t be disappointed.