About this product

Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle

If you are looking to build your own AR-15 from the ground up, the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle is a solid starting point. This bundle brings together Polymer80’s proven RL556V3 lower receiver with the matching jig kit, giving you everything you need to complete the lower without hunting for separate components. It is a straightforward, hands-on project for anyone who wants a custom rifle without paying a premium for a pre-built receiver.

Overview

The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle is designed for the builder who values control and simplicity. The RL556V3 lower is an 80% receiver, meaning it requires some final machining to become functional. Paired with the dedicated RL556v3 jig, this bundle simplifies the process of finishing the lower at home using basic tools. Polymer80 has a reputation for reliable, easy-to-use kits, and this bundle stays true to that. Whether you are completing your first build or adding another to the collection, this bundle delivers a clean, no-fuss path to a finished lower receiver.

Features & Specs

This bundle is built around the RL556V3 lower, which is compatible with standard AR15 parts. The jig kit is specific to this receiver, so you get precise alignment and fewer headaches during the milling process. Here is what you can expect from the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle:

• 80% lower receiver made from durable polymer, designed to accept mil-spec AR15 upper receivers, trigger groups, and buffer tubes.
• Includes the RL556v3 jig kit with drill bits, end mill, and alignment tools needed to complete the lower at home.
• No serial number required until finishing, giving you the freedom to build a receiver that is yours alone.

Additional specs worth noting: the lower receiver is compatible with both standard and enhanced takedown pins, and the jig is reusable for multiple builds. The polymer construction keeps weight low without sacrificing strength, and the ergonomic grip angle is comfortable for most shooters. For the price, this bundle is a practical choice for anyone serious about building their own AR.

Who It Is For

This bundle is for the DIY shooter who wants to learn the ins and outs of AR15 assembly without a huge upfront investment. It is also a good fit for the experienced builder looking for a reliable, repeatable jig system. If you have basic tools like a drill press or hand drill, you can finish the RL556V3 lower in an afternoon. The Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle is not for someone who wants a turnkey rifle—it requires work, but the result is a receiver you built yourself. It is also a smart option for those who want to avoid the wait times and paperwork sometimes associated with fully finished receivers.

• Ideal for first-time builders who want a complete, matched jig and receiver set.
• Great for hobbyists who enjoy customizing their own firearms.
• Works well for anyone who prefers a lightweight polymer lower over aluminum.

Shipping & FFL

This item ships directly to your doorstep. Because the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and RL556V3 Jig Kit Bundle is an 80% receiver, it is not classified as a firearm by the ATF and does not require transfer through a Federal Firearms License (FFL) dealer. No background check is needed for purchase or shipment. However, once you complete the receiver, you are responsible for complying with all applicable federal, state, and local laws regarding firearm ownership and serialization. Please check your local regulations before ordering, as some states and municipalities have restrictions on 80% receivers. We recommend consulting with a legal professional if you have any questions about compliance.