The 80% Lower Fire/Safe Marked – Anodized Black is a precision-machined billet 7075-T6 aluminum receiver blank. This premium lower is designed for builders seeking a high-quality foundation for a custom AR-15 in .223/5.56mm. Its durable Type III hardcoat anodized black finish and clear Fire/Safe engravings provide a professional look and reliable base for your complete build kit.
Key Features
- Machined from solid 7075-T6 aircraft-grade billet aluminum for superior strength.
- Permanent “Fire” and “Safe” selector markings engraved for clear, lasting identification.
- Hardcoat Type III anodized black finish for maximum corrosion and wear resistance.
- Compatible with all standard AR-15/Mil-Spec parts kits and upper receivers.
- Requires final machining by the end-user to complete the fire control cavity.
Specifications
| Caliber / Type | .223 Remington / 5.56x45mm NATO (Multi-Caliber AR-15) |
|---|---|
| Material | 7075-T6 Aluminum Billet |
| Finish | Type III Hardcoat Anodized (Black) |
| Compatibility | Standard AR-15 / M16 Pattern Components |
| Weight | Approx. 8.5 oz (unfinished) |
As a complete kit specialist, we specify 7075-T6 billet for its structural integrity, which is critical for a durable firearm. This lower serves as the legal starting point for a personalized rifle build. When paired with our jig and parts kits, it provides a straightforward project for a functional, custom AR-15 built to your specifications.
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FAQ
Is this legal to own?
This 80% lower is an unregulated component under federal law. However, state and local laws vary. It is the buyer’s responsibility to know and comply with all applicable laws before purchasing or completing the receiver.
What firearms is this compatible with?
This blank is designed for the standard AR-15 platform. It is compatible with mil-spec AR-15 upper receivers, lower parts kits, buffer systems, and stocks to build a functional rifle chambered in .223/5.56mm or other calibers using appropriate magazines and uppers.
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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