RL556v3 80% Ar15 Lower – Flat Dark Earth

For builders who demand a solid foundation without the burden of serialization, the RL556v3 80% AR15 lower in Flat Dark Earth represents a precision-machined blank ready for your custom jig and router. Produced by RL556v3, this lower receiver is crafted from 7075-T6 aluminum and finished in a durable, matte Flat Dark Earth anodization. It is designed to be completed by the end user, offering a legal path to a fully personalized AR-15 platform. As a raw 80% component, it requires further machining of the fire control cavity before installation of a lower parts kit.

Overview

The RL556v3 80% AR15 lower – Flat Dark Earth is a non-serialized, unfinished receiver that serves as the structural core of your AR-15 build. Manufactured from forged 7075-T6 aluminum, this lower is heat-treated to Mil-Spec standards for dimensional stability and long-term durability. The Flat Dark Earth finish provides corrosion resistance and a low-glare tactical appearance. Because it is sold as an 80% lower, no Federal Firearms License (FFL) transfer is required for purchase, though the end user is responsible for compliance with all local, state, and federal regulations regarding the completion and ownership of a firearm.

Features & Specs

Every RL556v3 80% AR15 lower is machined from a solid forging and then anodized in Flat Dark Earth for consistent color and hardness. Key specifications include:

• Material: Forged 7075-T6 aluminum, Mil-Spec hardcoat anodized in Flat Dark Earth.
• Design: 80% completion state; fire control cavity, trigger pocket, and selector detent holes are un-machined.
• Compatibility: Accepts standard AR-15 lower parts kits, buffer tubes, and pistol grip configurations.
• Dimensions: Meets mil-spec tolerances for upper receiver fitment and takedown pin alignment.
• Markings: Minimal roll markings; no serial number is present on the receiver flat.

The RL556v3 80% AR15 lower – Flat Dark Earth is designed for use with standard jigs and router-based completion systems. The Flat Dark Earth finish is baked on and resistant to solvents and wear.

• Finish: MIL-A-8625 Type III Class 2 hardcoat anodizing in Flat Dark Earth.
• Weight: Approximately 0.95 pounds (unfinished).
• Pocket dimensions: Pre-drilled takedown pin holes and rear lug; fire control area left as raw aluminum.
• Threading: Buffer tube threads are pre-cut to standard 1-3/8-16.

Who It’s For

This lower is intended for experienced firearm builders who possess the necessary tools and knowledge to complete a receiver from the 80% stage. It is ideal for the hobbyist seeking a custom, serial-number-free build or the professional gunsmith who requires a consistent, high-quality blank for a project. The RL556v3 80% AR15 lower – Flat Dark Earth is not for first-time builders without prior experience with jigs and milling equipment. It is designed for those who understand the legal requirements of completing and owning a firearm, and who wish to exercise their right to build a personal-use weapon from a component.

Shipping & FFL

Because the RL556v3 80% AR15 lower – Flat Dark Earth is classified as a non-firearm component (an unfinished receiver), it ships directly to your residential or business address without the need for an FFL transfer. No background check or dealer involvement is required for purchase. However, you must verify that completion of this receiver into a functional firearm is lawful in your jurisdiction. Once machined to a functional state, the lower becomes a firearm and must be possessed in compliance with all applicable federal, state, and local laws. This product is not for sale in states or localities where 80% receivers are restricted or prohibited. By purchasing this item, you certify that you are not prohibited from owning a firearm and that you will complete it in compliance with all laws.