RL556V3 80% AR15 Lower – Gray

Overview

The RL556V3 80% AR15 lower – gray is a precision-machined, unfinished lower receiver designed for builders who demand quality without unnecessary complexity. Manufactured by RL556V3, this 80% lower provides the foundation for a custom AR15 platform while remaining compliant with federal regulations as a non-firearm component. The gray anodized finish offers a professional look that integrates seamlessly with a wide range of upper receivers and furniture. Whether you are completing your first build or expanding your inventory, this lower delivers the dimensional accuracy needed for reliable function.

Features & Specs

Machined from 7075-T6 aluminum, the RL556V3 80% AR15 lower – gray meets Mil-Spec dimensions for compatibility with standard AR15 parts kits. The 80% completion status allows you to finish the fire control pocket and trigger pin holes according to your preferences. Each unit is inspected for consistent wall thickness and proper thread alignment in the buffer tube area.

• Material: 7075-T6 aluminum billet, hardcoat anodized in gray per Mil-A-8625 Type III
• Compatibility: Accepts all Mil-Spec AR15 lower parts kits, buffer tubes, and pistol grip configurations
• Markings: Clean, minimal branding with serial number placement area for personal engraving

The RL556V3 80% AR15 lower – gray includes a reinforced trigger pocket and integral trigger guard. All critical jig-indexing surfaces are machined to within 0.005 inches of specification, reducing fitting time when using a standard 80% lower jig system.

• Finish: Type III hardcoat anodizing, gray color, uniform matte texture
• Weight: Approximately 10.5 ounces, ready for finishing
• Warranty: Manufacturer defect coverage for machining and material integrity

Who It’s For

This product is intended for individuals who are legally permitted to possess firearms components and who have the tools and knowledge to complete an 80% lower receiver. The RL556V3 80% AR15 lower – gray suits hobbyist builders, gunsmiths, and small shop owners looking for a consistent, repeatable platform. It is not a completed firearm and requires finishing operations before installation of a trigger group and fire control components. Users should verify their state and local laws regarding 80% lowers prior to purchase.

• Designed for personal use, custom builds, and inventory for licensed manufacturers
• Requires a jig, drill press or router, and end mill to complete fire control pocket
• Not for individuals prohibited from owning firearms under federal or state law

Shipping & FFL

Because the RL556V3 80% AR15 lower – gray is classified as a non-firearm receiver blank, it ships directly to your door without the need for an FFL transfer from our facility. However, you are solely responsible for ensuring compliance with all applicable federal, state, and local laws. Some jurisdictions, including but not limited to California, New York, New Jersey, Connecticut, Washington D.C., and certain municipalities, may restrict or prohibit the sale or possession of 80% lowers. By purchasing this item, you confirm that you are legally eligible to possess it and that you will complete it in accordance with all laws. We recommend consulting with a local firearms attorney if you have any questions about your specific location. No returns or exchanges on completed or modified receivers.