Polymer80 AR15 80% Receiver W/ Jig Kit

If you have been shopping for a build-it-yourself project that puts the control back in your hands, the Polymer80 AR15 80% receiver w/ jig kit is exactly the starting point you need. This kit takes the guesswork out of finishing your own lower receiver at home, giving you a solid, lightweight foundation for a custom AR-15 platform. Whether you are a seasoned builder or a first-timer looking to learn the ins and outs of the platform, this receiver and jig combination delivers a straightforward machining experience without the need for expensive tooling.

Overview

The Polymer80 AR15 80% receiver w/ jig kit is a complete package designed to help you finish an unfinished lower receiver in your own workshop. The kit includes the 80% receiver itself along with a dedicated jig, drill bits, and end mill to guide you through the critical material removal steps. Because the receiver is not yet a functional firearm, you can have it shipped directly to your door without going through a Federal Firearms License (FFL) dealer. Once you complete the machining process, you will have a fully functional lower receiver that you can assemble into a complete rifle using standard AR-15 parts. It is a hands-on project that rewards patience and precision.

Features & Specs

This kit is built around a reinforced polymer receiver that is compatible with nearly all mil-spec AR-15 upper receivers and lower parts kits. The included jig aligns perfectly with the receiver’s pockets, so you can drill the trigger pin holes, safety selector hole, and fire control pocket with confidence. Key specifications include:

• Manufacturer: Polymer80 | Category: Build Kits
• Material: Reinforced polymer composite for reduced weight and corrosion resistance
• Compatibility: Works with standard AR-15 lower parts kits and upper receivers
• Jig kit contains: 3/16” drill bit, 1/8” drill bit, 5/32” end mill, and alignment pins

The receiver is designed to be finished using a standard hand drill or drill press, and the jig’s hardened steel bushings keep your bits on track. You will also find that the polymer construction shaves ounces off your build compared to an aluminum receiver, making it a great choice for a lightweight rifle. Remember to take your time and follow the instructions closely—rushing through the polymer80 ar15 80% receiver w/ jig kit process can lead to fitment issues down the line.

Who It’s For

This kit is ideal for the home builder who wants to learn the mechanical side of firearm assembly without investing in a full machine shop. It is also a solid option for anyone who prefers a non-serialized receiver that can be legally built as a personal firearm (where state and local laws permit). If you are a hobbyist looking to expand your skills, or someone who simply enjoys the satisfaction of building your own rifle from the ground up, the polymer80 ar15 80% receiver w/ jig kit will give you a rewarding weekend project. It is not for those expecting a drop-in ready part—this is a hands-on build that requires careful work and attention to detail.

Shipping & FFL

Because this product is an unfinished 80% receiver, it is not classified as a firearm by the ATF. Therefore, it can be shipped directly to your residence with no FFL transfer required. However, you are solely responsible for ensuring that the possession and finishing of this receiver is legal in your state, county, and municipality. Some states and localities have specific restrictions on 80% receivers or require serialization after completion. By purchasing this polymer80 ar15 80% receiver w/ jig kit, you acknowledge that you will comply with all applicable laws. We recommend checking with local authorities before placing your order. No FFL transfer is needed at the time of purchase, but again, please verify your local regulations.