This is a factory-second 80% lower receiver from Polymer80, marked with Fire and Safe positions. Machined from 7075-T6 aluminum and finished in a durable Type III Hardcoat Anodized Black, it’s the core component for your custom AR-15 build. It’s designed for compatibility with standard AR-15 parts kits and most common 80% jigs, offering a solid foundation at a value price.
Key Features
- Factory-blemished 7075-T6 aluminum forging for high strength and reduced weight.
- Pre-milled Fire and Safe selector markings for clear, professional-looking function.
- Hardcoat Type III Anodized Black finish for superior corrosion and wear resistance.
- Compatible with standard AR-15 lower parts kits (LPK) and trigger assemblies.
- Designed to work with common 80% lower jigs for precise milling completion.
Specifications
| Caliber / Type | Multi-Caliber (AR-15 Platform) |
|---|---|
| Material | 7075-T6 Aluminum |
| Finish | Type III Hardcoat Anodized Black |
| Compatibility | Standard AR-15 / Milspec Components |
| Weight | Approx. 8.5 oz (unfinished) |
As an 80% receiver, this part is not a firearm under federal law, allowing you to legally manufacture a personal rifle without serialization or an FFL transfer. The 7075-T6 aluminum construction matches mil-spec strength, ensuring it can handle high-volume shooting. This blemished version provides the same structural integrity for your build at a reduced cost.
✓ In Stock — Ships within 24h✓ Discreet Packaging✓ Secure Checkout✓ USA-Based
FAQ
Is this legal to own?
Under federal law, an 80% lower is an unregulated piece of metal, not a firearm. You are responsible for knowing and complying with all state and local laws regarding the possession and manufacturing of firearms.
What firearms is this compatible with?
This is a multi-caliber AR-15 platform lower. Once milled, it accepts standard AR-15 upper receivers and parts kits to build rifles chambered in 5.56/.223, 300 Blackout, 9mm, and other calibers with the appropriate upper and magazine.
How long does shipping take?
Orders ship within 24 hours from our US warehouse. Standard delivery is 3-7 business days. Expedited options available at checkout.
Reviews
There are no reviews yet.