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RL556v3 80% AR15 Lower – White

Original price was: $89.00.Current price is: $64.87.

The RL556v3 ? features Polymer80 ?s proprietary polymer composite, a solid core design, flared magwell, and beefier mil-spec buffer tube housing. The pistol grip area features a unique threadless design specific to Polymer80 rifle lowers. The kit includes: 80% Polymer AR15 Lower Receiver (Mil-spec) Polymer Jig Trigger Hole Drill Guide Drill Bits and End Mill A

SKU: px-1253-rl556v3-80-ar15-lower-whi-e2f68b Categories: ,

RL556V3 80% AR15 Lower – White

Overview

When you’re building from the ground up, the foundation matters. The RL556V3 80% AR15 Lower – White gives you a clean, ready-to-finish platform that skips the serialized paperwork without skimping on fit or finish. This isn’t a stripped billet piece dressed in cheap paint. It’s a mil-spec dimensioned 80% lower machined from 7075-T6 aluminum, then coated in a bright, durable white anodized finish. Whether you’re a first-time builder or a seasoned armorer, the RL556V3 80% AR15 Lower – White offers a crisp canvas for your next project. It’s a true 80% blank, meaning the trigger pocket, fire control group shelf, and safety selector holes are pre-drilled, but you’ll need to finish the pocket and drill the remaining pin holes yourself. That hands-on process is part of the appeal — and with this white lower, the result looks as sharp as it functions.

Features & Specs

The RL556V3 80% AR15 Lower – White is built to standard AR15 mil-spec tolerances, so it will mate seamlessly with any mil-spec upper. Here’s what you’re working with:

  • Manufacturer: RL556V3 — trusted for consistent 80% lower machining and hard anodized coatings.
  • Material: 7075-T6 aluminum for strength and corrosion resistance, not softer 6061.
  • Finish: White Type III hard coat anodized — uniform coverage inside and out, no bare spots.
  • Category: Parts — this is an unfinished lower receiver, requiring drilling and finishing before assembly.
  • Pre-machined features: Trigger pocket, safety selector holes (partial), bolt catch hole, and rear takedown detent hole.
  • Features to complete: Fire control group pocket depth, hammer and trigger pin holes, and trigger guard area (if applicable).

Because this is the RL556V3 80% AR15 Lower – White, each unit is individually inspected for dimensional accuracy. The anodizing is tough enough to hold up to regular handling, and the white color is a consistent matte tone — not a gloss finish that shows every fingerprint.

Who It’s For

This lower is a natural fit for builders who want a unique color without sacrificing mechanical integrity. If you’re planning a two-tone AR build, the RL556V3 80% AR15 Lower – White pairs well with black, gray, or FDE uppers. It’s also a practical choice for anyone who prefers to finish their own fire control pocket rather than buying a serialized receiver. Because it’s an 80% blank, you’ll need basic tools — a drill press or router jig, end mills, and a vise — to bring it to completion. This isn’t a drop-in part, but if you enjoy the process of turning a block of aluminum into a working lower, this is your starting point. The white finish also makes it easy to see your machining progress and any tool marks, which can help you refine your technique.

Shipping & FFL

Because the RL556V3 80% AR15 Lower – White is an unfinished 80% receiver, it is not classified as a firearm by the ATF. No FFL transfer is required for shipment within the United States. We ship directly to your doorstep with no additional paperwork. However, local and state laws vary. It is your responsibility to check your jurisdiction’s regulations regarding 80% lowers before ordering. Some states and localities restrict or prohibit the possession or finishing of 80% receivers. By purchasing this item, you confirm that you are legally allowed to own and complete it in your area. We recommend reviewing your state and local laws prior to checkout.

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