First Impressions of Moriarti AR-10/LR-10 Complete Billet Upper Receiver
The Moriarti AR-10/LR-10 Complete Billet Upper Receiver promises a robust and reliable foundation for any AR-10 build. This upper receiver distinguishes itself with its billet aluminum construction and complete assembly, including forward assist and dust cover, providing a significant head start for builders.
My own journey to this specific upper receiver stemmed from a desire to build a .308 platform rifle that balanced affordability with enhanced durability. I was searching for an upper that could withstand the rigors of both range use and potential hunting scenarios.
Upon unboxing, the Moriarti upper struck me with its solid feel and clean lines. The hard coat anodizing gives it a professional, durable look. The weight felt substantial, indicative of the billet construction, instilling confidence in its ability to handle the .308 cartridge.
I considered several other uppers, including options from Aero Precision and Palmetto State Armory. Ultimately, the Moriarti AR-10/LR-10 Complete Billet Upper Receiver won out due to its competitive price point and the promise of billet construction at that price.
My initial impression was one of cautious optimism. The price was attractive, but I was keen to test its fit and performance. I hoped that it would deliver the enhanced durability I was seeking.
Real-World Testing: Putting Moriarti AR-10/LR-10 Complete Billet Upper Receiver to the Test
First Use Experience
My first range trip with the Moriarti AR-10/LR-10 Complete Billet Upper Receiver involved assembling it with an Aero Precision M5 lower and a 16-inch .308 barrel. I tested its performance with a variety of ammunition, ranging from standard FMJ to hunting rounds.
The upper performed admirably in dry conditions, exhibiting consistent cycling and reliable ejection. I encountered no immediate issues with the fit or function, which was a relief.
The initial use revealed a potential issue: the upper’s “girth,” as one user described it. It didn’t sit perfectly flush with the Aero M5 lower, leaving a slight overhang. This was purely aesthetic, but noticeable.
Extended Use & Reliability
After several months and hundreds of rounds, the Moriarti AR-10/LR-10 Complete Billet Upper Receiver has proven itself to be a generally reliable component. While the aesthetic issue with the lower remains, the functional performance hasn’t wavered.
The hard coat anodizing has held up well, showing minimal signs of wear despite regular use. Cleaning is straightforward, with no unusual crevices or hard-to-reach areas.
Compared to a previous budget AR-15 upper receiver I used, the Moriarti definitely feels more solid and durable. While not perfect, its reliability has been a pleasant surprise, especially considering the price.
Breaking Down the Features of Moriarti AR-10/LR-10 Complete Billet Upper Receiver
Specifications
Manufacturer: Moriarti.
Color: Black, offering a standard and versatile aesthetic.
Finish: Hard Coat Anodizing, providing enhanced durability and corrosion resistance.
Fabric/Material: Billet Aluminum, ensuring a strong and rigid platform.
Gun Make: AR Platform, specifically designed for AR-style rifles.
Gun Model: AR-10, compatible with AR-10 lower receivers and components.
Condition: New, guaranteeing a fresh and unused product.
Full Picatinny Rail Flat Top: This feature is essential for mounting optics and accessories, providing ample space and versatility.
DPMS Low Spec Rail Height: This specification dictates compatibility with specific handguards and accessories designed for this height. It’s crucial for ensuring proper alignment and fit.
Accepts Mil-Spec .308 Cal Ejection Port Door Kit And Forward Assist Kit: This is vital for maintaining compatibility with standard AR-10 components. It makes repairs and replacements easier.
These specifications are significant because they directly impact the upper’s performance, compatibility, and longevity. The billet construction and hard coat anodizing contribute to its robustness, while the DPMS low spec rail height determines which handguards and optics will fit seamlessly.
Performance & Functionality
The Moriarti AR-10/LR-10 Complete Billet Upper Receiver performs its primary job – housing the bolt carrier group and barrel – effectively. Accuracy is dependent on the barrel and other components, but the upper provides a stable platform for consistent performance.
Its strengths lie in its reliable operation and relatively affordable price. The main weakness, as noted by other users and experienced in my own build, is the potential for an imperfect fit with some AR-10 lowers due to its dimensions.
Considering the price point, the Moriarti upper generally meets expectations. It’s not a premium-tier upper, but it provides a solid foundation for a functional and reliable AR-10 build.
Design & Ergonomics
The billet aluminum construction provides a solid and durable feel, although it does contribute to a slightly heavier weight compared to forged uppers. The black hard coat anodized finish gives it a clean, tactical appearance.
The design is straightforward and functional. The pre-installed forward assist and dust cover save time and effort during the build process.
Durability & Maintenance
The hard coat anodized finish provides excellent resistance to scratches and corrosion. Regular cleaning and lubrication are sufficient to maintain its performance and longevity.
Given its robust construction, the Moriarti AR-10/LR-10 Complete Billet Upper Receiver should last for many years with proper care. The AR-10 platform is known for its durability, and this upper contributes to that reputation.
Accessories and Customization Options
The Moriarti AR-10/LR-10 Complete Billet Upper Receiver includes a pre-installed forward assist and dust cover, saving builders the cost and hassle of sourcing and installing these parts separately.
It is compatible with a wide range of AR-10 accessories, including handguards, charging handles, and optics. The DPMS low spec rail height is a key consideration when selecting a handguard.
Pros and Cons of Moriarti AR-10/LR-10 Complete Billet Upper Receiver
Pros
- Affordable Billet Construction: Offers enhanced durability at a competitive price point.
- Pre-Assembled with Forward Assist and Dust Cover: Saves time and effort during the build process.
- Durable Hard Coat Anodized Finish: Provides excellent resistance to wear and corrosion.
- Compatible with Standard AR-10 Components: Ensures ease of parts replacement and customization.
- Reliable Performance: Delivers consistent cycling and ejection when properly assembled.
Cons
- Fit Issues with Some Lowers: May not sit perfectly flush with all AR-10 lower receivers.
- Aesthetic Concerns: “Girthy” appearance may not appeal to all users.
Who Should Buy Moriarti AR-10/LR-10 Complete Billet Upper Receiver?
This upper is perfect for budget-conscious AR-10 builders who prioritize function and durability over aesthetics. It is also suitable for those new to AR-10 builds, as the pre-installed components simplify the assembly process.
Individuals seeking a perfectly seamless fit between the upper and lower receiver or those prioritizing a lightweight build might want to consider other options. If having a perfectly flush fit is a must, spending more on a matched upper/lower set from a different manufacturer is advisable.
A must-have accessory for this upper is a high-quality handguard that matches the DPMS low spec rail height. Also, a reliable bolt carrier group and charging handle are essential for optimal performance.
Conclusion on Moriarti AR-10/LR-10 Complete Billet Upper Receiver
The Moriarti AR-10/LR-10 Complete Billet Upper Receiver presents a compelling value proposition for AR-10 enthusiasts seeking a durable and functional upper without breaking the bank. While it may not be the most aesthetically refined option, its robust construction and reliable performance make it a worthwhile choice for many builds.
The price is certainly justified for what you get. It’s hard to find a billet upper at this price point that performs as reliably.
I would recommend this upper receiver to anyone building a budget-friendly AR-10. It’s a solid foundation that won’t let you down. If you’re looking for a reliable and affordable AR-10 upper, give the Moriarti AR-10/LR-10 Complete Billet Upper Receiver a serious look!