About this product

Polymer80 P80 G150 AR-15 80% Receiver Kit – Gray

If you are looking to build an AR-15 from the ground up with a clean, professional finish, the P80 G150 80% receiver kit in gray is a solid foundation. Polymer80 has earned a reputation for reliable, user-friendly jigs and receivers, and this kit continues that tradition. It gives you the core components needed to complete a lower receiver while leaving the final machining steps in your hands. Whether you are a first-time builder or a seasoned hobbyist, this kit offers a straightforward path to a custom rifle without unnecessary complexity.

Overview

The P80 G150 AR-15 80% receiver kit in gray is designed around a nearly finished lower receiver that requires final milling and drilling to become a functional firearm component. The kit includes the 80% lower, a high-strength polymer jig with drill bits and end mill, and all necessary hardware for assembly. The gray finish is consistent and durable, matching well with standard AR-15 upper receivers and accessories. This is not a complete rifle—it is a build kit that puts you in control of the final fit and finish.

• 80% polymer lower receiver in flat dark gray with reinforced buffer tower and integral trigger guard
• Includes reusable polymer jig with hardened steel drill bushings, carbide end mill, and drill bits
• All lower parts kit components, including trigger, hammer, selector, springs, and detents

Features & Specs

Polymer80 uses a glass-reinforced polymer for the G150 receiver that holds up well under standard use. The jig system is one of the better ones on the market—it secures the receiver firmly and provides clear indexing for drilling the trigger and hammer pin holes, as well as the safety selector pocket. The included drill bits and end mill are carbide-tipped and should handle a few builds before needing replacement. The gray color is molded into the polymer, so it will not chip or wear off like painted surfaces.

• Manufacturer: Polymer80 | Category: Build Kits | Material: Glass-reinforced Nylon polymer
• Compatible with mil-spec AR-15 upper receivers, buffer tubes, and stock assemblies
• Jig includes pre-drilled alignment holes for fire control group and selector; includes step-by-step instructions

Who It’s For

This kit is for anyone comfortable with basic shop tools—a drill press or handheld drill, a vise, and patience. It is not for someone looking for a drop-in lower. You need to be willing to spend an evening or two carefully following the directions to mill out the fire control pocket and drill the pin holes. The P80 G150 AR-15 80% receiver kit in gray is a good match for builders who want a lightweight lower that does not require anodizing or finishing work. It is also popular among shooters who prefer to assemble their own firearms for learning or customization purposes. If you have built an AR-15 lower before, this kit will feel familiar. If you have not, the instructions are clear enough to get you through it with a little patience.

• Home builders with basic tool access (drill press or hand drill, vise, and safety glasses)
• Shooters seeking a lightweight, corrosion-resistant polymer lower in a neutral gray finish
• Anyone wanting a build project that does not require specialized gunsmithing equipment

Shipping & FFL

Because this is an 80% receiver kit, it is not classified as a firearm under federal law. The receiver is not yet a functional firearm frame. Therefore, no Federal Firearms License (FFL) transfer is required to ship this item directly to your residence. However, you must comply with all applicable state and local laws. Some states regulate 80% receivers as firearms or require serialization. It is your responsibility to verify legality in your jurisdiction before ordering. By purchasing, you confirm that you are legally allowed to possess this item and that you will complete it only in compliance with all federal, state, and local regulations. Polymer80 Inc. and our store assume no liability for misuse or noncompliance.