The Polymer80 RL556V3 – RHINO 80% AR15 Lower Receiver with Jig comes complete with essential parts as described: Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig If you are looking to build a custom AR-15 from the ground up, the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig is a solid starting point. This kit combines a durable, lightweight 80% lower with a complete jig system, giving you the flexibility to complete the receiver at home while staying within legal boundaries. Whether you are a first-time builder or a seasoned hobbyist, this setup simplifies the finishing process without cutting corners on material quality. Overview The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig is designed for builders who want a reliable, corrosion-resistant platform. The lower is made from reinforced polymer, which keeps weight low without sacrificing structural integrity. It comes with a reusable jig kit that includes drill bits, end mill, and step-by-step instructions, so you can finish the receiver pocket and trigger pin holes accurately. This is a complete package—no separate jig purchase required. Features & Specs Material: High-impact, glass-reinforced polymer for reduced weight and increased durability Compatibility: Fits standard AR-15 upper receivers, LPKs, and stocks Jig System: Includes a full jig with pre-drilled guide holes, carbide drill bits, and a 1/4-inch end mill for precise material removal Finish: Black textured surface that resists scratching and chemicals Weight: Approximately 8 ounces for the lower receiver alone Manufacturer: Polymer80 Who It's For This kit is for anyone who enjoys the process of building their own firearm. It is ideal for DIY enthusiasts who want to learn the mechanics of the AR-15 platform without investing in expensive tooling. The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig also appeals to shooters who prefer a lightweight lower for competition or recreational use. Because the receiver is 80% complete, it is not considered a firearm under federal law until you finish the machining, making it a great option for those who want to avoid the FFL transfer process during the build stage. That said, once completed, it must be serialized in accordance with local regulations. Skill Level: Beginner to intermediate – the jig provides clear guidance Tools Required: Drill press or hand drill, vise, and basic hand tools Estimated Build Time: 1–2 hours for the lower receiver work Shipping & FFL Because the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver with Jig is sold as an unfinished 80% lower, it does not require transfer through a Federal Firearms License (FFL) holder for shipment. We ship this item directly to your doorstep in all states where 80% lowers are legal. However, once you complete the machining and assemble the lower into a functional firearm, you must comply with all federal, state, and local laws regarding serialization, background checks, and ownership. It is your responsibility to verify that completing this receiver is legal in your jurisdiction before purchasing. We do not ship to states or localities where 80% lowers are restricted or prohibited. Shipping: Free ground shipping on all orders over $99 within the contiguous US Processing Time: Orders ship within 1–3 business days FFL Disclaimer: No FFL required for this 80% lower. Finished receivers must comply with all applicable laws.

No. This product is a part or accessory and does not require an FFL for purchase or shipping.

While Polymer80 RL556V3 – RHINO 80% AR15 Lower Receiver with Jig is legal in most states, always verify your local laws before placing an order. We comply with all state regulations.

In most cases, yes — Glock-compatible frames are designed to accept Glock OEM and compatible magazines. Always confirm fitment in the product details.

That depends on your state’s concealed carry laws. Once properly serialized and registered, carrying may be allowed under state law.

We ship all over the USA within 1–3 business days. You will receive tracking once shipped. Delivery times vary by carrier and region.