RL556V3 80% AR15 Lower – Black

For builders who demand precision and reliability from the ground up, the RL556V3 80% AR15 Lower in black represents a foundational component for your next custom rifle. Machined from a solid billet of 7075-T6 aluminum, this lower receiver offers the dimensional accuracy and material integrity required for a durable, long-lasting firearm. Whether you are completing a new build or stocking up for future projects, the RL556V3 80% AR15 lower – black delivers the exacting standards that serious shooters expect.

Overview

The RL556V3 80% AR15 lower – black is a partially machined receiver designed for the home gunsmith or professional builder. It arrives as an unfinished component requiring you to complete the fire control cavity, trigger pin holes, and safety selector detent channel. This process allows you to legally manufacture your own firearm without serialization for personal use under federal law. The black anodized finish provides corrosion resistance and a uniform, low-glare appearance that integrates seamlessly with standard AR15 upper receivers and parts kits.

Features & Specs

Engineered for repeatable accuracy and structural rigidity, the RL556V3 80% AR15 lower – black incorporates several key design elements that set it apart from economy options. The billet construction reduces porosity and internal stress compared to forged receivers, resulting in tighter tolerances and a smoother final assembly. Below are the primary specifications and features of this component.

• Material: 7075-T6 aluminum billet offering high tensile strength and impact resistance for demanding shooting conditions.
• Finish: Type III hard coat anodized in black for superior wear protection and consistent color matching with mil-spec uppers.
• Compatibility: Designed to accept all standard AR15 small parts kits, trigger groups, and buffer tube assemblies without modification.

• Machining: Pre-drilled rear takedown pin hole and buffer tube threads; fire control pocket and trigger pin holes require finishing.
• Weight: Approximately 0.9 pounds before completion, contributing to a balanced overall rifle weight in finished builds.
• Marking: Clear pilot holes and reference lines aid in accurate drilling and routing for first-time builders.

• Compliance: Manufactured as an 80% lower receiver; not a firearm under federal law until milling is complete.
• Warranty: Manufacturer-backed against material defects and workmanship for the lifetime of the product.

Who It’s For

The RL556V3 80% AR15 lower – black is intended for knowledgeable individuals who prefer to build rather than buy. It suits experienced gunsmiths seeking a cost-effective foundation for multiple builds, as well as DIY enthusiasts who want to understand every component of their rifle. This product is also ideal for those who wish to create a firearm for personal use without serialization, provided they comply with all applicable federal, state, and local laws. If you have experience with basic milling tools and follow manufacturer instructions carefully, the RL556V3 80% AR15 lower – black offers a reliable platform for your custom AR15 project.

Shipping & FFL

Because the RL556V3 80% AR15 lower – black is an unfinished receiver and not classified as a firearm under federal law, it ships directly to your residence without requiring an FFL transfer. No background check or dealer involvement is necessary for delivery within the United States. However, you are solely responsible for understanding and complying with all laws in your state and local jurisdiction. Some states and municipalities regulate the possession or completion of 80% lowers, including requirements for serialization or permits. Check your local regulations before purchasing. We do not ship to states where 80% lowers are prohibited. By completing this purchase, you confirm that you are legally eligible to own and manufacture a firearm under all applicable laws.