RL556V3 80% AR15 Lower – Black

Overview

The RL556V3 80% AR15 Lower in black is a precision-machined, unfinished lower receiver designed for builders who want to complete a firearm from a raw platform. Manufactured by RL556V3, this 80% lower is constructed from billet 7075-T6 aluminum and includes a black Type III hardcoat anodized finish for corrosion resistance and durability. As an 80% receiver, it requires final machining before it can be used as a functional lower, giving you full control over the build process. This component is listed under the Parts category and represents a direct, no-nonsense option for those assembling a custom AR15.

Features & Specs

The RL556V3 80% AR15 Lower – Black is built to standard mil-spec dimensions, ensuring compatibility with a wide range of upper receivers, buffer tubes, and grip options. The black anodized finish reduces glare and protects against wear. Key specifications include:

• Material: 7075-T6 billet aluminum for high strength-to-weight ratio
• Finish: Black Type III hardcoat anodized for scratch and corrosion resistance
• Compatibility: Accepts standard AR15 lower parts kits, stocks, and triggers
• Machining requirements: 80% complete; requires drilling of trigger pocket and safety selector holes
• Weight: Approximately 10.5 ounces before completion

This RL556V3 80% AR15 lower – black features a flared magazine well for easier reloads and a reinforced rear takedown lug for added durability. The receiver is marked with standard caliper and safety selector indicators, and the buffer tube threads are pre-cut to mil-spec dimensions. All critical pin holes and trigger slots are left un-machined to comply with federal regulations as a non-firearm component.

Who It’s For

This product is intended for experienced firearms builders and hobbyists who have the tools and knowledge to complete an 80% lower receiver. The RL556V3 80% AR15 lower – black is suitable for individuals who want to build a fully custom AR15 from the ground up, whether for target shooting, competition, or personal defense. It is not for novice builders without access to a drill press, jig, and proper safety equipment. If you are assembling a rifle for the first time, we recommend consulting a qualified gunsmith or using a pre-completed lower receiver. This component is also popular among those who prefer to finish their own firearms for educational or craftsmanship purposes.

Shipping & FFL

Because the RL556V3 80% AR15 Lower – Black is classified as an unfinished receiver and not a complete firearm, it ships directly to your door without the need for an FFL transfer. No background check is required at the time of purchase. However, once you complete the machining process, the part becomes a firearm under federal law. You are responsible for complying with all applicable local, state, and federal regulations regarding the completion and possession of this component. We recommend checking your state and local laws before ordering. We ship via insured ground carriers and typically process orders within 1-3 business days. No signature is required, but tracking information is provided.