Polymer80 AR15 80% Receiver W/ Jig Kit

Build your own custom AR-15 from the ground up with the Polymer80 AR15 80% Receiver with Jig Kit. This complete kit provides the core component and all necessary tooling to complete a legally compliant, unserialized lower receiver at home. Designed for the serious DIY builder, this kit eliminates the need for specialized machining equipment while delivering a durable, mil-spec compatible platform.

Overview

The Polymer80 AR15 80% Receiver with Jig Kit is a complete solution for builders who prefer total control over their firearm construction. The kit includes an unfinished 80% lower receiver, a precision-machined polymer jig, drill bits, end mill, and all necessary hardware. The receiver is constructed from reinforced polymer with a stainless steel trigger guard insert and threaded rear takedown pin detent hole. When paired with the included jig and standard hand tools, you can complete the receiver to a functional state without serialization requirements. This polymer80 ar15 80% receiver w/ jig kit is compatible with all standard AR-15 upper receivers, lower parts kits, and buffer tube assemblies.

Features & Specs

• Manufacturer: Polymer80. Category: Build Kits. Material: High-impact reinforced polymer with stainless steel trigger guard insert.
• Includes: 80% lower receiver, polymer jig, drill bits, end mill, and assembly hardware. Requires only a drill and basic hand tools.
• Compatible with all mil-spec AR-15 components including upper receivers, LPKs, stocks, grips, and buffer tube assemblies.

The jig is reusable and precisely indexed to guide your drill press or hand drill for accurate pocket and pin hole placement. The receiver features an integral trigger guard, flared magazine well for faster reloads, and a threaded bolt catch pin hole. This polymer80 ar15 80% receiver w/ jig kit provides a clean, professional finish with no external mold lines. The polymer construction reduces overall weight to approximately 8 ounces without sacrificing structural integrity during normal use.

Who It’s For

This kit is designed for experienced builders who understand firearm assembly and legal compliance. It is ideal for hobbyists who want full control over their build specifications, including trigger choice, barrel length, and stock configuration. Builders seeking a lightweight platform for competition, hunting, or recreational shooting will appreciate the reduced weight and durable polymer construction. Lawful purchasers who reside in states where unserialized firearm construction is permitted will find this polymer80 ar15 80% receiver w/ jig kit to be a straightforward project. This kit is not recommended for first-time builders without prior experience assembling AR-15 lower receivers. You must be legally eligible to possess a firearm under federal and state law to purchase and complete this receiver.

Shipping & FFL

This product does not require shipment to a Federal Firearms License (FFL) dealer because it is an 80% receiver. It may be shipped directly to your residential address. However, federal law requires that the completed firearm be legally possessed only by the individual who performs the finishing work. You must ensure compliance with all applicable federal, state, and local laws regarding the manufacture and possession of unserialized firearms. Some states and localities restrict or prohibit the ownership or completion of 80% receivers. It is your responsibility to verify the legality of this purchase and subsequent completion in your jurisdiction. By purchasing this polymer80 ar15 80% receiver w/ jig kit, you acknowledge that you are not prohibited from possessing firearms and that you will use this product in full compliance with all laws. No returns or exchanges on opened jig kits or completed receivers.