Polymer80 AR15 80% Receiver w/ Jig Kit

Build your own custom AR-15 platform rifle with the Polymer80 AR15 80% Receiver w/ Jig Kit. This complete kit includes the unfinished lower receiver and the necessary jig, drill bits, and end mill to finish the receiver at home. Designed for the builder who values control over their firearm’s configuration, this kit allows you to complete a legal, serialized build provided you comply with all applicable federal, state, and local laws. The Polymer80 AR15 80% Receiver w/ Jig Kit delivers a cost-effective, hands-on approach to firearm assembly without sacrificing the quality and precision required for a reliable build.

Overview

The Polymer80 AR15 80% Receiver w/ Jig Kit is a complete solution for the home builder. The kit includes the unfinished 80% lower receiver, a precise jig system, high-speed steel drill bits, and a carbide end mill. This all-in-one package eliminates the guesswork of sourcing separate components. The receiver is constructed from reinforced polymer, offering a lightweight yet durable foundation for your AR-15. Whether you are a first-time builder or an experienced hobbyist, this kit streamlines the finishing process, allowing you to focus on the assembly and customization of your firearm.

Features & Specs

• Reinforced polymer construction provides a strong, lightweight lower receiver that resists impact and environmental wear.
• Includes a complete jig system with hardened steel guide plates for precise alignment during drilling and milling operations.
• Compatible with standard AR-15 lower parts kits and mil-spec buffer tubes, stocks, and grips for maximum customization.
• Kit contains 3 high-speed steel drill bits and 1 carbide end mill for finishing the trigger pocket, hammer pin holes, and safety selector hole.
• Integrated trigger guard and flared magazine well for improved ergonomics and faster reloads.
• Accepts standard AR-15 magazines and is designed to fit standard lower receiver dimensions after completion.

Who It’s For

This kit is intended for individuals who are legally permitted to possess and manufacture firearms under the Gun Control Act of 1968, as amended. It is designed for hobbyists, DIY builders, and those who want a deeper understanding of their firearm’s mechanics. The Polymer80 AR15 80% Receiver w/ Jig Kit is not for beginners who lack basic mechanical skills. Users should be comfortable using a drill press or hand drill, following detailed instructions, and performing precise work. This product is for the builder who values the craftsmanship of completing a firearm from an unfinished receiver, not for those seeking a quick or ready-to-use component.

Shipping & FFL

This product is an 80% receiver and is not considered a firearm under federal law. Therefore, it does not require shipment to a Federal Firearms License (FFL) dealer. However, it is your responsibility to ensure that purchasing and completing this receiver is legal in your state, county, and municipality. Some states and localities have specific restrictions on the possession, transfer, or completion of 80% receivers. By purchasing this Polymer80 AR15 80% Receiver w/ Jig Kit, you confirm that you are compliant with all applicable laws. We ship this item via standard carriers to the address on file. No signature is required, but we recommend shipping to a secure location. This product is not a firearm, and no background check is required for purchase. However, once you complete the receiver, it becomes a firearm under federal law, and you must comply with all regulations regarding serialization and transfer in your jurisdiction.