RL556V3 80% AR15 Lower – Black

Overview

If you’re building from the ground up, the rl556v3 80% ar15 lower – black is a solid starting point that gives you full control over your project. This 80% lower is machined from billet 7075-T6 aluminum and finished in a tough, matte black anodize. It’s designed to be completed with basic tooling, letting you finish the fire control cavity and trigger pocket at your own pace. Whether you’re after a custom build or just want to understand your rifle’s foundation, this lower delivers the flexibility you need without cutting corners on material quality.

Features & Specs

RL556v3 is known for clean machining and consistent tolerances, and this black 80% lower reflects that reputation. The forging starts as a solid block, then gets profiled and drilled for the takedown pins and bolt catch. You’ll find the pocket is pre-milled to 80%, leaving you with the critical trigger and hammer pin holes to finish. The hardcoat anodize resists scratching and corrosion, so it holds up during handling and the finishing process.

• Material: 7075-T6 aluminum billet, hardcoat anodized black
• Pre-milled to 80% – trigger pocket and fire control cavity incomplete
• Compatible with standard AR15 mil-spec upper receivers and buffer tubes
• Marked with RL556v3 logo and serial number placement area

• Weight: approximately 0.9 pounds – lightweight for a lower
• Finish: matte black anodize, uniform coverage inside and out
• Includes: lower receiver only – no jig, no trigger, no grip

This rl556v3 80% ar15 lower – black is built for the home builder who wants a no-surprises platform. The pocket walls are straight, the threads are clean, and the black anodize is even across the entire part. You won’t need to deburr or ream anything before you start work.

Who It’s For

This lower is aimed at the DIY builder who prefers to complete their own receiver rather than buy a finished unit. If you have a drill press, a few end mills, and a jig, you can turn this 80% blank into a functional lower. It’s also a good fit for someone who wants to learn the AR15 platform inside out – finishing the trigger pocket forces you to understand the sear engagement and hammer travel. The rl556v3 80% ar15 lower – black is not for the first-time builder who lacks tools or patience, but if you’re comfortable with basic machining, it’s a rewarding project.

We recommend this for experienced builders who already have a jig and finishing kit. It’s also a clean base for a custom cerakote or anodized finish later, since the black base layer is well-bonded. If you prefer to buy a stripped lower ready to assemble, this 80% version isn’t that – it’s a blank canvas that requires work before it becomes a receiver.

Shipping & FFL

Because this is an 80% lower, it is not classified as a firearm under federal law. It ships directly to your door with no FFL transfer required. No background check, no waiting period, no dealer fee. However, once you complete the receiver by machining the fire control cavity, it becomes a firearm and must be serialized per ATF regulations if you plan to sell or transfer it. For personal use, no serial number is required, but we recommend marking it for safety and identification. Please check your state and local laws before ordering – some states restrict 80% lowers or require them to be transferred through an FFL. This product is intended for personal use and is not a finished firearm.