P80 G150 AR-15 80% Receiver Kit – Black | Polymer80
Specs at a glance
About this product
The Polymer80 P80 G150 is an 80% lower receiver kit for the AR-15 platform, designed for the experienced builder seeking a lightweight, durable polymer alternative. It’s a complete kit requiring machining to completion, offering a significant weight reduction over traditional aluminum receivers. Since adding it to our inventory in early 2024, it has become a consistent best-seller for builders focused on reducing overall rifle weight.
Key Highlights
- Complete 80% lower receiver kit includes jig, drill bits, and end mill.
- High-strength, reinforced polymer construction for durability and impact resistance.
- Dramatically reduces overall rifle weight; our staff notes it adds barely noticeable carry weight.
- Compatible with standard AR-15 parts kits and mil-spec upper receivers.
- Requires machining tools (drill press or router) and knowledge to complete.
Product Details
| Manufacturer | Polymer80 |
| Model | P80 G150 |
| Platform | AR-15 / Multi-Caliber |
| Material | Reinforced Polymer |
| Finish | Matte Black |
| Weight (measured) | 2.2 oz |
| Includes | 80% Receiver, Jig, Drill Bits, End Mill |
| Fits | Mil-Spec AR-15 Parts Kits & Uppers |
What Buyers Ask
What tools are required to finish this 80% lower?
You will need a drill press or a sturdy handheld drill, a vise to secure the jig, and safety equipment. The included jig and tooling bits are designed for use with a standard drill press. A router with a compatible template can also be used for the fire control pocket.
How does the polymer hold up compared to aluminum?
Polymer80’s reinforced polymer is engineered for the stresses of the AR-15 platform. It offers excellent impact resistance and durability for standard use. The primary advantage is the substantial weight savings, making it ideal for builds where minimizing weight is a priority.
Is this compatible with all AR-15 upper receivers?
Yes, the P80 G150 is designed to be compatible with standard mil-spec AR-15 upper receivers. We recommend checking fitment with your specific upper, as with any lower receiver, but it follows standard dimension specifications.
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What's in the box
- P80 G150 AR-15 80% Receiver Kit – Black | Polymer80