Description

RL556v3 80% AR15 Lower – Black

Overview

The RL556v3 80% AR15 Lower – Black is a precision-machined, unfinished lower receiver designed for builders who demand exacting tolerances and a robust foundation for their custom AR-15 platform. Manufactured by RL556v3, this 80% lower is constructed from 7075-T6 aluminum, offering the same durable material used in mil-spec forged receivers. The black anodized finish provides corrosion resistance and a uniform, professional appearance. As an 80% lower, it requires final machining of the fire control pocket and trigger pin holes to complete the receiver, allowing the builder to retain legal compliance as a non-serialized component until fully finished. This part is classified under the Parts category and is intended for experienced gunsmiths or hobbyists with access to a jig and appropriate tooling.

Features & Specs

The RL556v3 80% AR15 Lower – Black is engineered for precision. Every dimension is held to mil-spec tolerances to ensure seamless compatibility with standard AR-15 upper receivers, buffer tubes, and lower parts kits. The 80% completion stage leaves sufficient material for the builder to customize the trigger pocket depth and pin hole alignment.

• Material: 7075-T6 aluminum forging for maximum strength-to-weight ratio
• Finish: Type III hard coat anodized in black for scratch and wear resistance
• Compatibility: Accepts all mil-spec AR-15 lower parts kits, stocks, and grips
• Machining: Requires drilling of trigger and hammer pin holes, plus fire control pocket milling (jig and tools sold separately)
• Weight: Approximately 0.8 lbs as shipped, reducing to 0.7 lbs after completion

Who It Is For

This RL556v3 80% AR15 Lower – Black is intended for the advanced home builder, custom gunsmith, or small-scale manufacturer who values hands-on control over their firearm’s lower receiver. It is not for novice builders without prior experience using a router or drill press with an 80% jig. The product suits those who wish to build a non-serialized receiver for personal use, or who need a spare lower to match a specific upper configuration. If you have already selected a trigger group, buffer system, or stock, this lower provides a blank canvas for your exact build specifications. It is also ideal for those maintaining a parts inventory for future builds, as the 80% status avoids FFL transfer requirements until the receiver is completed and serialized (if required by local law).

• Experienced builders with a jig and milling tools
• Custom rifle projects requiring specific trigger or stock fitment
• Inventory for future build completion without immediate serialization

Shipping & FFL

Because the RL556v3 80% AR15 Lower – Black is not yet a functional firearm receiver, it does not require transfer through a Federal Firearms License (FFL) dealer for shipment. It can be shipped directly to your home or business address within the United States where legal. However, you must verify that your state and local laws permit the possession and completion of 80% lower receivers. Some states, such as California, New York, New Jersey, Connecticut, and Washington D.C., impose restrictions or outright bans on unserialized receivers. By purchasing this product, you acknowledge that you are legally allowed to own and finish an 80% lower in your jurisdiction. Once the receiver is completed, it becomes a firearm and must be serialized in accordance with applicable federal and state laws. No returns are accepted on partially machined or modified 80% lowers. Always consult with a qualified legal professional regarding your specific obligations before beginning any build.

• Shipped directly to your door without FFL transfer fees
• Customer must comply with all state and local laws regarding 80% receivers
• No serial number or registration required until completion (where applicable)