Polymer80 G150 AR15 80% Lower Receiver ONLY – .56

Description

Product Overview

The Polymer80 G150 AR15 80% Lower Receiver is a high-quality, unfinished receiver blank designed for the experienced firearms enthusiast who enjoys the process of building and customization. As an 80% lower, it is not a firearm and requires machining operations to be completed by the end-user to become a functional lower receiver. This product is ideal for builders seeking a lightweight, durable foundation for a custom AR-15 platform rifle or pistol. Its primary use is to serve as the core component in a personal build project, offering a satisfying hands-on experience that results in a tailored firearm. The G150 is particularly well-suited for those new to 80% projects due to its polymer construction, which is generally easier to machine than aluminum, while still offering robust performance.

Key Features

• Nylon-Reinforced Polymer Frame: Constructed from a durable polymer blend, the G150 offers a significant weight reduction compared to traditional aluminum lowers. The reinforced material provides enhanced strength and rigidity where it counts.
• Simplified Machining Process: Engineered for easier completion, the polymer material allows for faster drilling and milling with standard workshop tools, making it a confident choice for first-time 80% builders.
• Mil-Spec Compatibility: Once fabricated, the G150 is designed to accept most standard AR-15 parts kits, fire control groups, buffers, and stocks, ensuring broad compatibility for your build.
• Flat Dark Earth (FDE) Finish: The receiver comes in a neutral Flat Dark Earth finish, providing a popular and versatile color that coordinates well with a wide variety of upper receivers and accessories.
• Lightweight Design: The polymer construction results in a remarkably light lower receiver, contributing to an overall reduction in the weight of the completed firearm, an advantage for extended carry or use.
• Semi-Automatic Platform: Designed for the ubiquitous semi-automatic AR-15 platform in .223/5.56 caliber, this lower is the starting point for building a highly customizable and versatile firearm for sport, training, or recreation.

Performance & Applications

The completed Polymer80 G150 lower receiver serves as the legal foundation for a range of custom firearms, defined by the upper receiver assembly you choose to pair with it. Its performance is rooted in reliable function and lightweight handling.

Custom Lightweight Rifle Build: For hunters or recreational shooters who cover ground on foot, pairing the completed G150 with a lightweight barrel and upper assembly creates a purpose-built rifle where every ounce saved is noticeable, without sacrificing the reliability of the AR-15 platform.

Dedicated Training Platform: The cost-effective and durable nature of the polymer lower makes it an excellent candidate for a dedicated .22 Long Rifle conversion build or a high-round-count training rifle. The reduced weight can also benefit newer shooters during extended practice sessions.

Compact Personal Defense Firearm: When assembled with a pistol-length upper receiver and an arm brace (in compliance with all ATF regulations), the G150 can form the basis of a highly maneuverable and lightweight AR-style pistol for home defense scenarios. Its FDE finish is also a practical choice for low-light visibility.

About Polymer80

Polymer80 is a recognized leader in the manufacturing of innovative firearms components, specifically known for pioneering high-quality polymer frames and receivers. The company has built its reputation on engineering-grade polymers and precise tooling, offering products that meet rigorous standards for fit, function, and durability. Their expertise in polymer formulations results in materials that effectively balance weight, strength, and machinability. Polymer80’s commitment to providing a platform for responsible, skilled enthusiasts to engage in personal fabrication projects has established them as an authority in the DIY firearms component space. Their designs focus on user-friendly processes and full compatibility, reflecting a deep understanding of both the builder’s needs and the mechanical requirements of a reliable firearm.

Make Your Decision

The Polymer80 G150 represents a specific choice for a specific builder. If your priority is a lightweight build, easier machining for a first project, and the cost advantages of a polymer lower, this receiver blank is a compelling option. It delivers Polymer80’s known quality in a form that respects the traditional AR-15 pattern while offering modern material benefits. Ensure you possess the proper tools, knowledge, and intent to complete this 80% receiver in full compliance with all federal, state, and local laws before purchasing. For the informed enthusiast ready to undertake a hands-on build, the G150 is a solid foundation.

Technical Specifications

Frequently Asked Questions