AR-10 .308 M5 12.5" Aero Precision Style Upper Receiver Assembly / ATLAS R-ONE Handguard - FDE

AR-10 .308 M5 12.5" Aero Precision Style Upper Receiver Assembly / ATLAS R-ONE Handguard - FDE

Enhance your AR-10 build with the Moriarti Armaments AR-10 .308 M5 12.5" Upper Receiver Assembly, featuring the ATLAS R-ONE Handguard in Flat Dark Earth (FDE). Designed for shooters who demand precision and a perfect fit, this upper receiver assembly is ideal for custom AR-10 builds, tactical applications, and hunting scenarios. Aero Precision M5-style components ensure a high-quality, mil-spec performance that delivers reliability and functionality.

This assembly includes a 12.5" .308 CMV barrel, a low-profile gas block, and a carbine-length gas tube, all pre-assembled for quick integration into your project. BCG and Charging Handle are not included but can be added as optional accessories.

Key Features:

Complete Upper Assembly

• Assembled Upper Receiver: Pre-assembled with precision-milled components for ease of installation and optimal performance.
• Atlas R-ONE Handguard (FDE): Precision-machined 9” 1pc free-float rail system made from 6061-T6 aluminum, providing strength, lightweight durability, and seamless customization options. Its continuous top rail and scalloped rails offer excellent ergonomics and superior accessory compatibility.

Upper Receiver Specifications

• Forged 7075 T6 Aluminum: Offers outstanding strength and lightweight performance, ideal for heavy-duty use.
• Precision Machined to Mil-Spec: Built for flawless fit and finish, this upper receiver accepts standard DPMS .308 components.
• M4 Feedramps: Enhances reliable feeding for flawless operation.
• .2795” Takedown Pin Holes: Provides a precise fit to your lower receiver.
• Forward Assist and Port Door Installed: Ready for action with essential mil-spec features.

Handguard Features

• 1.8” Inside Diameter: Accommodates most muzzle devices and 1.5” suppressors.
• Built-in Anti-Rotation Tabs: Ensures added durability and prevents rail misalignment during use.
• Compatible with Low-Profile Gas Blocks: Maximizing customization for your build.

12.5" .308 CMV Barrel

• Twist Rate: 1 in 10, optimized for .308 rounds.
• Material: Made from 4150 Chrome Moly Vanadium Steel, known for its excellent durability and long-term wear resistance.
• QPQ Corrosion-Resistant Finish: Both inside and out for superior durability and longevity, particularly in tough environments.
• Gas Block Journal: .750” diameter for compatibility with most gas blocks.
• Gas Port: .072” ensures reliable cycling, even under rapid-fire conditions.
• Carbine-Length Gas System: Ideal for smooth cycling in AR-10 builds.
• DPMS Barrel Extension: Ensures compatibility with DPMS-style rifles.
• HP and MPI Tested: High-pressure and magnetic particle inspection tested to meet military specifications.

Applications:

• Tactical Shooters: The low-profile gas system and robust construction make this upper perfect for home defense, close-quarters combat, or tactical training.
• Hunting: The 12.5" barrel provides the right balance of power and maneuverability for hunters who prefer the .308 caliber.
• Competitive Shooters: The ATLAS R-ONE handguard offers lightweight strength, and its scalloped rails provide a comfortable grip for competitive environments.
• AR-10 Builders: A great addition to your DPMS-compatible AR-10 build, this upper assembly ensures precision fitment and long-lasting performance.

Specs:

• Upper Receiver:

  • Material: Forged 7075 T6 aluminum
  • Precision machined with M4 feedramps
  • Includes forward assist and port door
  • .2795” takedown pin holes

• Handguard:

  • Length: 9"
  • Material: 6061-T6 aluminum
  • Free float design
  • Features: Built-in anti-rotation tabs, scalloped rails, continuous top rail
  • Internal diameter: 1.8" (fits most muzzle devices and 1.5" suppressors)

• Barrel:

  • Length: 12.5"
  • Material: 4150 Chrome Moly Vanadium Steel
  • Twist rate: 1 in 10
  • Threading: 5/8 x 24
  • Gas system: Carbine length
  • QPQ corrosion-resistant finish
  • Gas block journal: .750”
  • Gas port: .072"
  • HP and MPI tested

• Compatibility:

  • DPMS high-profile, M5-style upper receiver
  • Does not include BCG or Charging Handle (add-ons available)

Perfect For:

• Tactical Shooters: A robust, lightweight solution for home defense, SWAT teams, and military training.
• Competitive Shooters: Customize your AR-10 with a high-quality, precision-built upper assembly that accommodates accessories and offers superior performance.
• AR-10 Builders: Whether you're assembling or upgrading your AR-10, this upper receiver offers the perfect foundation for custom builds.

Please Note:

• The BCG and charging handle are sold separately and may be added at checkout.
• Stock Availability: Images may not reflect the exact product, but all parts are mil-spec quality.