This is a billet 7075-T6 aluminum 80% lower receiver, precision-machined for dedicated 9mm AR builds. It features factory-engraved Fire and Safe markings and is designed specifically for use with Colt-style 9mm magazines. The hard-coat anodized finish provides a durable foundation for your pistol-caliber carbine or pistol build, offering a direct path to a custom AR9.
Key Features
- Machined from 7075-T6 aircraft-grade billet aluminum for superior strength.
- Dedicated 9mm design for reliable feeding with Colt-style magazines.
- Pre-engraved Fire and Safe selector markings for a finished look.
- Hard-coat Type III anodized finish for corrosion and wear resistance.
- Requires standard AR-15 jigs and tooling for completion.
Specifications
| Caliber / Type | 9mm / 80% Lower Receiver |
|---|---|
| Material | 7075-T6 Billet Aluminum |
| Finish | Hard-Coat Type III Anodized (Matte Black) |
| Compatibility | AR-9 builds using Colt-style 9mm magazines & lowers |
| Weight | Approx. 8.5 oz (unfinished) |
A dedicated 9mm lower like this solves the reliability issues common in multi-caliber adapters. The magwell is engineered for Colt-style magazines, ensuring consistent feed angle and bolt catch function. This is the correct starting point for a robust 9mm PCC build meant for range use or competition, where a proprietary lower is preferred over a modified AR-15 receiver.
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FAQ
Is this legal to own?
This 80% lower is not a firearm and is legal to own in most states. You are responsible for manufacturing a legal firearm in compliance with all federal, state, and local laws, including serialization requirements if mandated.
What firearms is this compatible with?
This lower is compatible with standard AR-15 upper receivers and parts kits when paired with a dedicated 9mm bolt carrier group and barrel. It is designed specifically for Colt-style 9mm magazines, not Glock-style.
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.
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