RL556V3 80% AR15 Lower – Gray

If you are looking for a clean starting point for your next AR-15 build, the RL556V3 80% AR15 lower in gray hits the sweet spot between quality and practicality. Machined from billet 7075-T6 aluminum, this lower receiver gives you the foundation to complete a firearm that is truly your own. The gray anodized finish offers a subtle, tactical look that pairs well with both black and FDE uppers. Whether you are a first-time builder or a seasoned hobbyist, the RL556V3 provides the right mix of strength and workability at a very fair price point.

The RL556V3 80% AR15 lower – gray is designed to be finished at home using standard jigs and tooling. It comes with all the critical pocketing and trigger recesses pre-machined, so you only need to complete the fire control pocket and trigger pin holes. This saves you time and reduces the chance of errors compared to a raw forging. The result is a receiver that fits tight to your upper and functions reliably through thousands of rounds.

Overview

The RL556V3 80% AR15 lower – gray is a billet 80% lower from RL556v3, a manufacturer known for consistent tolerances and clean machining. The gray anodizing is uniform and scratch-resistant, and the receiver features a flared magwell for faster reloads. The overall profile is slightly heavier than a standard mil-spec lower, which adds durability without feeling bulky. This is a parts-category item intended for builders who want a premium feel without paying custom prices.

Features & Specs

• Material: 7075-T6 aluminum billet, harder and more fatigue-resistant than 6061 alloys used in many budget lowers
• Finish: Type III Class 2 hardcoat anodized in a matte gray that resists wear and corrosion
• Pocketing: Pre-machined trigger pocket, bolt catch recess, and selector detent channel; requires only fire control pocket and pin holes to be completed
• Compatibility: Accepts all mil-spec AR15 upper receivers, LPKs, and buffer tubes
• Extra detail: Flared magazine well, oversized trigger guard, and integral trigger pin boss for improved lockup

• Weight: approximately 9.2 ounces before completion
• Threaded bolt catch pin hole (no roll pin needed on that side)
• Markings: Laser-engraved RL556v3 logo and “Cal Multi” on the magazine well

When you pick up the RL556V3 80% AR15 lower – gray, you will notice the crisp edges and lack of tool marks. The anodizing is applied evenly inside and out, which helps prevent galling during assembly. The flared magwell is deep enough to make reloads smoother but not so large that it interferes with standard grips.

Who It’s For

This lower is ideal for the home builder who wants to complete their own firearm without dealing with a raw forging or a stripped receiver that requires extensive machining. It suits the shooter who values a slightly heavier, more rigid platform for precision shooting or competition. The RL556V3 80% AR15 lower – gray also appeals to collectors who want a gray receiver to match a specific build theme. If you have basic tools and a good jig, you can finish this lower in an afternoon and have a rifle that feels custom without the custom price tag.

Shipping & FFL

This RL556V3 80% AR15 lower – gray is not a firearm and can be shipped directly to your home address with no FFL transfer required. Because it is an 80% receiver, it does not have a serial number and is not classified as a firearm by the ATF. Please check your local and state laws before ordering, as some jurisdictions restrict the possession or finishing of 80% receivers. We ship via USPS Priority Mail with tracking and signature confirmation. No FFL paperwork is needed for this item, but you must be at least 18 years old to purchase.