Description
Lightweight 7075-T6 billet AR15/M4 upper — precision machined, optics-ready, and built for durability and drop-in compatibility with Mil-Spec components.

Key Features
- Forged & CNC machined from aerospace-grade 7075-T6 aluminum
- Lightweight, weight-optimized billet geometry for improved handling
- Full-length M1913 Picatinny rail — optics-ready for red dots, holographics, magnified optics
- Precision machined barrel extension interface for secure headspace and alignment
- Enhanced feed ramp / ejection port geometry for reliable feeding and ejection
- Compatible with standard AR15/M4 barrel extensions, handguards, and charging handles
- Mil-Spec Type III hard anodize finish for wear and corrosion resistance
Product Overview
The AUTHORITY ELITE® AR15/M4 Lightweight 7075-T6 Billet Upper Receiver is designed for builders who demand precise fit, repeatable alignment, and an optics-ready platform. Machined from 7075-T6, this upper balances strength and reduced weight while maintaining the tolerances required for modern high-performance builds. Ideal for duty, AR15 precision builds, and modular SBR/PCC platforms when paired with the correct components and legal compliance.
Why Choose AUTHORITY ELITE
- Material & Strength: 7075-T6 billet construction provides exceptional strength-to-weight ratio for demanding use.
- Precision Fit: Tight CNC tolerances reduce play and improve repeatability between upper/lower pairings.
- Modularity: Standard interfaces allow choice of barrels, handguards, and muzzle devices from top manufacturers.
- Finish & Durability: Type III hard anodize preserves appearance and function under extended use.
Specifications
- Model: AUTHORITY ELITE® AR15/M4 Lightweight 7075-T6 Billet Upper Receiver
- Material: 7075-T6 Aluminum (forged & CNC)
- Finish: MIL-A-8625F Type III Hard Anodize (Black)
- Rail: Full-length M1913 Picatinny top rail
- Barrel Interface: Standard AR barrel extension interface (specify barrel & thread options in product variants)
- Compatibility: Standard AR15/M4 upper — accepts Mil-Spec barrels, charging handles, and handguards
- Weight: Lightweight billet design (varies by configuration)
- Country of Origin: USA (replace if needed)
- SKU: AUTH-ELT-ARUPR-SKU (replace)
COMPATIBILITY & FITMENT
Designed to accept standard Mil-Spec AR-15 components (barrels, BCGs, buttstocks, grips). For AR pistol or SBR builds consult a qualified gunsmith and ensure compliance with NFA rules where applicable.

FEDERAL FIREARMS LICENSE REQUIRED
Please provide your FFL dealer information to sales@ravenrockarmory.com immediately after purchase. Orders without valid FFL documentation will be delayed or cancelled.
Fitment & Installation Notes
This upper is built to standard AR15/M4 dimensions and will accept Mil-Spec barrels and handguards. Minor fitting may be required for some proprietary aftermarket components. If you are not familiar with firearms assembly, we recommend installation by a qualified gunsmith.
Important — Federal Firearms License Required
Note: A valid Federal Firearms License (FFL) transfer is required to purchase and receive this product where applicable. By ordering receivers or other regulated components you agree to follow all local, state, and federal laws. We will only ship to a valid FFL dealer address unless local law permits otherwise.
Ordering & Shipping
- Availability: In stock / backorder (update as appropriate)
- Shipping: Ships to FFL — buyer must provide valid FFL info at checkout
- Returns: Return policy applies to non-serialized parts — contact us before returning
EXPORT NOTICE: This product and/or its components is subject to the Arms Export Control Act (AECA), the Export Administration Act (EAA) as continued in effect under the International Emergency Economic Powers Act (IEEPA), the International Traffic In Arms Regulations (ITAR, 22 CFR Parts 120-130), the Export Administration Regulations (EAR) and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) Regulations. Export is strictly prohibited without authorization or a license issued by the U.S. Department of State's Directorate of Defense Trade Controls. Any documents, drawings, prints, etc. that can be viewed, downloaded, or printed from our website may contain technical data which may not be exported outside of the United States or released/disclosed to non-US persons (i.e. persons who are not US citizens or lawful permanent residents) inside of the United States, without prior written authorization by the relevant US Government agency. Penalties for violation of U.S. export laws and regulations can reach $1,000,000 per violation and include up to 10 years imprisonment.
Additional Details
- SKU:
- BAD556-LW-UR
- UPC:
- 810033782152
- Condition:
- New
- Width:
- 6.00 (in)
- Height:
- 4.00 (in)
- Depth:
- 8.00 (in)