Description
Build Your Custom AR-15 with Polymer80 G150 80% Lower Receiver
Take control of your firearm construction with the Polymer80 G150 80% lower receiver, designed for enthusiasts who want to build a personalized AR-15 from the ground up. As an unfinished firearm frame, this receiver requires final machining to become functional, making it ideal for DIY gunsmithing projects. Crafted from high-strength polymer, the G150 offers a lightweight yet durable foundation for your custom build while maintaining compatibility with standard AR-15 components.
Key Features and Benefits
- Unfinished Design: This 80% lower receiver comes incomplete, requiring milling and drilling to finalize. This legal status allows for personal firearm construction without serialization requirements in most jurisdictions.
- Lightweight Polymer Construction: Made from reinforced polymer materials that provide excellent durability while reducing overall weight compared to aluminum counterparts.
- AR-15 Compatibility: Designed to work with standard AR-15 parts kits, uppers, and accessories for seamless integration into your build project.
- Precision Engineering: Features pre-molded fire control group pockets and trigger pin holes to simplify the completion process for builders.
- Cost-Effective Solution: Save money compared to purchasing complete firearms while gaining the satisfaction of building your own weapon system.
Technical Specifications
The Polymer80 G150 maintains the dimensional specifications of mil-spec AR-15 lower receivers, ensuring proper fitment with upper receivers and internal components. The polymer construction has been tested for impact resistance and durability under various environmental conditions.
Legal Considerations
Important: This product is an unfinished receiver that requires additional machining to become a functional firearm. Purchasers are responsible for understanding and complying with all federal, state, and local laws regarding firearm manufacturing and ownership. Completion of this receiver may require specific tools and expertise.
Why Choose Americans Gun Shop?
At Americans Gun Shop, we’re committed to providing quality firearm components and exceptional customer service. Our team has extensive experience with AR-15 platforms and can provide guidance for your building projects. We ensure all products meet quality standards before shipping, and we’re here to support your Second Amendment rights with reliable products and knowledgeable service.
Frequently Asked Questions
Why buy from Americans Gun Shop?
We offer expert guidance on firearm components, quality assurance on all products, competitive pricing, and dedicated support for your building projects. Our team understands the nuances of firearm construction and can help you make informed decisions for your specific needs.

| Material | Reinforced Polymer |
| Compatibility | AR-15 Platform |
| Completion Status | 80% (Unfinished) |
| Color | Black |
| Weight | Approximately 6-8 oz (varies by completion) |
| Fire Control Group | Pre-molded pockets |





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