Polymer80 AR15 80% Receiver W/ Jig Kit

The Polymer80 AR15 80% Receiver w/ Jig Kit provides a complete foundation for building a custom AR-15 platform at home. This kit includes the unfinished lower receiver and the necessary jig to complete the machining process, allowing you to create a functional firearm without a serialized component. Designed for hobbyists and builders who prefer hands-on assembly, this kit delivers the precision and reliability expected from the Polymer80 brand.

Overview

This polymer80 ar15 80% receiver w/ jig kit is a direct solution for those looking to finish an AR-15 lower receiver from an 80% blank. The kit includes the receiver, a heavy-duty aluminum jig, drill bits, end mill, and all required hardware. The receiver is made from reinforced polymer, offering a lightweight yet durable platform. When you choose this polymer80 ar15 80% receiver w/ jig kit, you are selecting a product that streamlines the building process with pre-marked reference points and a sturdy jig that reduces alignment errors. Every component is manufactured to meet standard mil-spec dimensions, ensuring compatibility with most AR-15 upper receivers and parts kits.

Features & Specs

The Polymer80 AR15 80% Receiver w/ Jig Kit includes the following specifications and components directly from the manufacturer:

• Manufacturer: Polymer80, Category: Build Kits. The receiver is molded from a high-impact polymer composite that resists cracking and warping under standard cartridge pressures.
• The jig is CNC-machined from 6061 aluminum and includes hardened steel drill bushings, preventing bit drift during the drilling of trigger pin and safety selector holes.
• Kit contains: 80% lower receiver, aluminum jig, drill bits, end mill, trigger guard, and all necessary pins and springs. The receiver features an integrated trigger guard and accepts standard AR-15 grip and buffer tube threads.

Key performance attributes of this polymer80 ar15 80% receiver w/ jig kit include:

• Accepts all mil-spec AR-15 lower parts kits and buffer tube assemblies. No proprietary components required beyond the jig and receiver.
• Receiver weight is approximately 7.5 ounces, reducing overall rifle weight compared to aluminum lowers.
• Jig is reusable for multiple builds and includes clear instructions for drilling and milling the fire control cavity.

Who It's For

This kit is intended for individuals who are legally permitted to own and manufacture firearms under current federal law. It is suitable for experienced builders who are comfortable using a drill press or hand drill with the provided jig. The polymer80 ar15 80% receiver w/ jig kit is not recommended for first-time builders without prior mechanical experience, as the process requires precise alignment and careful material removal. It is also a practical choice for those who prefer a non-serialized lower receiver for personal use, provided all local and state regulations are followed. The kit is designed for hobbyists, competitive shooters, and anyone building a custom AR-15 from the ground up.

Shipping & FFL

This product ships directly to your residential address. No Federal Firearms License (FFL) transfer is required for this 80% receiver because it is not classified as a firearm by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) until it is machined into a functional state. However, it is your sole responsibility to verify that possession and completion of this polymer80 ar15 80% receiver w/ jig kit comply with all applicable federal, state, and local laws. Some states and municipalities impose restrictions on 80% receivers, including serialization requirements or outright bans. By purchasing this kit, you acknowledge that you are legally eligible to possess and complete it. We do not provide legal advice; consult a qualified attorney if you have questions about your jurisdiction.

Shipping is available to all 50 US states. Standard processing time is 1-3 business days. International shipping is not available.