Polymer80 G150 AR15 80% Lower Receiver Only

Build your own custom AR-15 platform with the Polymer80 G150 80% lower receiver. This component is a precision-machined, unfinished lower receiver designed for the individual builder who wants full control over their firearm’s configuration. As an 80% lower, it requires final machining to become a functional receiver, meaning no serial number is applied by the manufacturer. This product is sold as a raw component only and is not a firearm. It does not require transfer through a Federal Firearms License (FFL) dealer at the time of purchase, though final assembly and legal compliance remain your responsibility.

Overview

The Polymer80 G150 AR15 80% lower receiver is engineered from high-strength, impact-resistant polymer. It is compatible with standard AR-15 mil-spec parts kits and buffer tubes, allowing you to build a reliable rifle or pistol from the ground up. The receiver includes reinforced front and rear takedown pin bosses, a flared magazine well for faster reloads, and an integrated trigger guard. This 80% lower is designed for users who understand the legal and mechanical requirements of completing a firearm receiver. It is sold as a component only, with no serial number or background check required at the point of sale.

Features & Specs

• Material: High-strength, impact-resistant polymer with glass-fiber reinforcement for durability and weight reduction.
• Compatibility: Fits all mil-spec AR-15 upper receivers, lower parts kits, and buffer tube assemblies.
• Design Features: Flared magazine well for rapid reloading, integrated trigger guard, and reinforced takedown pin bosses.

• Machining Required: The receiver is 80% complete. You must drill the trigger pin holes, hammer pin holes, and safety selector hole, as well as mill out the fire control pocket to final depth using jigs and tooling.
• Finish: Raw polymer surface ready for paint, cerakote, or use as-is. No anodizing required.
• Weight: Approximately 0.5 lbs, contributing to a lightweight overall build.

• No Serial Number: This component does not include a serial number. It is not a firearm under federal law until fully machined and functional.
• Package Includes: One (1) polymer80 g150 ar15 80% lower receiver only. No jig, bits, or parts kit included.
• UPC: Does not apply; sold as a raw component.

Who It’s For

The polymer80 g150 ar15 80% lower receiver only is intended for experienced firearm builders, hobbyists, and gunsmiths who are legally permitted to own and manufacture firearms. This product is not for first-time builders without proper tooling and knowledge. You should be comfortable using a drill press, router, or hand tools with the appropriate 80% lower jig. It is also suitable for those who want to create a completely custom firearm without a manufacturer-assigned serial number, provided you comply with all applicable federal, state, and local laws regarding firearm manufacture and ownership. This product is not for individuals in jurisdictions where 80% lowers are restricted or prohibited.

Shipping & FFL

This polymer80 g150 ar15 80% lower receiver only ships directly to your doorstep. Because it is an 80% lower and not a completed firearm, no Federal Firearms License (FFL) transfer is required for purchase. No background check is conducted at the point of sale. However, once you complete the receiver into a functional firearm, you must comply with all federal regulations, including any requirements for serialization or registration in your state or locality. Some states and municipalities restrict the ownership or manufacture of 80% lowers. It is your sole responsibility to verify that purchasing, possessing, and completing this product is legal in your area. We reserve the right to cancel orders that violate our shipping policies or applicable law.