RL556V3 80% AR15 Lower – Gray

Overview

The RL556v3 80% AR15 lower – gray is a precision-machined, unfinished lower receiver designed for builders who demand exacting tolerances and a clean, professional aesthetic. Manufactured from 7075-T6 aluminum with a hardcoat anodized finish in gray, this 80% lower provides a solid foundation for custom AR15 builds while remaining compliant with current federal regulations as an unfinished receiver. The RL556v3 designation reflects the third-generation design improvements in the pocket geometry and trigger guard contour, making it one of the more refined 80% options available in the gray finish.

Features & Specs

Every RL556v3 80% AR15 lower – gray is machined from a solid billet of 7075-T6 aluminum and finished with a MIL-SPEC Type III Class 2 hardcoat anodize in gray. The lower is compatible with all standard AR15 upper receivers and mil-spec parts kits. Key specifications include:

• Material: 7075-T6 aluminum billet with hardcoat gray anodized finish
• Design: Third-generation RL556v3 pocket geometry with integral trigger guard
• Compatibility: Accepts all mil-spec AR15 lower parts kits and buffer tubes
• Weight: Approximately 10.2 ounces before completion
• Markings: Laser-engraved RL556v3 logo and caliber designations on magwell

The RL556v3 80% AR15 lower – gray includes a threaded bolt catch pin, oversized trigger guard opening for gloved use, and a rear takedown detent hole that is pre-drilled and tapped. The gray anodizing provides consistent color across the entire receiver with no blotching or uneven tones.

Who It’s For

This RL556v3 80% AR15 lower – gray is suited for experienced builders who want a clean, unfinished receiver that requires standard machining operations to complete. It is ideal for the following users:

• Hobbyists who prefer to mill or drill their own fire control cavity
• Builders seeking a gray finish that matches other gray anodized components
• Those who want a lower receiver that does not require an FFL transfer at time of purchase
• Individuals building a lightweight or custom AR15 from the ground up
• Competition shooters who need a consistent, non-black lower for color-matched builds

The RL556v3 80% AR15 lower – gray is not recommended for first-time builders who lack access to a drill press or milling jig. It is intended for those who understand the machining requirements and possess the necessary tools to complete the fire control pocket, trigger slot, and safety selector hole.

Shipping & FFL

Because the RL556v3 80% AR15 lower – gray is sold as an unfinished, non-firearm receiver, it does not require transfer through a Federal Firearms License (FFL) dealer at the time of purchase. It ships directly to your door in compliance with ATF regulations for unfinished receivers. However, once you complete the machining and convert this 80% lower into a functional firearm, you become the manufacturer. Federal law requires that any completed firearm must be serialized and may not be transferred to another party without going through an FFL. State and local laws vary; it is your responsibility to verify that possession and completion of this RL556v3 80% AR15 lower – gray are legal in your jurisdiction. No returns on machined or completed receivers.

• Ships directly to residential addresses in most states
• No FFL transfer fee required at purchase
• Check your state and local laws before ordering