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The Black Rain Ordnance SPEC15 stripped lower gives you a solid foundation to build exactly the rifle you want. Made from forged aircraft-grade 7075-T6 aluminum, this receiver is machined to tight tolerances and finished with a hardcoat anodized black coating that stands up to real use. It's marked for multi-caliber compatibility, so you can configure it for 223 Remington, 5.56 NATO, or other compatible calibers depending on the upper you pair it with.
This forged construction delivers strength and durability without the brittleness you sometimes see in cheaper alternatives. The hardcoat anodizing resists corrosion and wear, making it suitable for both bench shooting and field work. You get selector markings for SAFE, FIRE, and FULL positions, giving you options for how you want to configure the trigger group. The lower is mil-spec compatible, so standard AR-15 parts will fit and function correctly.
A stripped lower gives you complete control over every aspect of your rifle. You'll need to add a lower parts kit (with trigger, hammer, springs, and pins), a buffer tube with stock or brace, and a pistol grip to complete the receiver. From there, you can mate it to any standard AR-15 upper receiver assembly. Whether you're building your first AR or adding to your collection, starting with a quality lower like the SPEC15 means you're not compromising on the foundation of your rifle.
A stripped lower is just the start. You'll need a lower parts kit (trigger assembly, hammer, springs, pins, and selector), a buffer tube with stock or brace, and a pistol grip. Once those are installed, you can attach any standard AR-15 upper receiver assembly to have a functional rifle.
Yes, the SPEC15 is mil-spec compatible and will work with any standard AR-15 upper receiver assembly. The multi-caliber marking means you can configure it for 223 Rem or 5.56 NATO depending on which upper you use.
Forged aluminum is stronger and more durable than cast aluminum because the forging process aligns the grain structure of the metal, creating superior strength. The SPEC15's 7075-T6 aluminum is a premium aerospace-grade material that resists wear and stress better over thousands of rounds.
Hardcoat anodizing creates a protective oxide layer that resists corrosion, scratches, and wear from regular handling and shooting. It's designed to stand up to field use and won't easily wear off like cheaper finishes.
| UPC | 697067886441 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BROSPEC15LRABLK |
| Shipping Weight | 0.0 |
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