The AR9 80% Lower Fire/Safe Marked is a premium billet receiver crafted from 7075-T6 aluminum for dedicated 9mm AR builds. Its distinct Fire and Safe markings and forged-style flared magwell set it apart. The Type III hardcoat anodized finish provides durability, and its design is optimized for Glock-style magazine compatibility, offering a solid foundation for a reliable pistol-caliber carbine or pistol build.
Key Features
- Machined from 7075-T6 aircraft-grade aluminum billet for superior strength.
- Dedicated 9mm design with integrated feed ramp and LRBHO compatibility.
- Clear, deep-stamped Fire and Safe selector markings on both sides.
- Flared magwell optimized for Glock-pattern 9mm magazines.
- Type III hardcoat anodized matte black finish for corrosion resistance.
Specifications
| Caliber / Type | 9mm / 80% Lower Receiver |
|---|---|
| Material | 7075-T6 Aluminum |
| Finish | Type III Hardcoat Anodized |
| Compatibility | AR-9 platforms using Glock-style magazines |
| Weight | Approx. 8.5 oz |
This billet lower is engineered for 9mm’s direct blowback operation, providing a rigid platform that reduces flex for better accuracy. Its dedicated design eliminates the need for a mag block adapter, creating a more reliable feed path. This is the core component for building a compact, low-recoil range or home defense firearm, where reliability with pistol magazines is essential.
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