This AR15 Pistol in 300 Blackout is a compact, high-performance firearm built for shooters who demand a potent close-quarters package. Featuring a 7.5-inch barrel and a hard coat anodized finish, this pistol is engineered for reliability and maneuverability. It’s the ideal choice for home defense, tactical training, or as a highly effective truck gun, offering substantial power in a minimal footprint. Miami Shooters Supply delivers this complete upper and lower receiver assembly ready for fast shipping.
Key Features
- Chambered in 300 AAC Blackout, optimized for short barrels and superior terminal performance with subsonic or supersonic ammunition.
- 7.5-inch M-LOK handguard provides a lightweight, rigid platform for mounting lights, lasers, and grips exactly where you need them.
- Hard coat anodized finish on the aluminum receivers and buffer tube ensures exceptional corrosion resistance and durability.
- Includes a 30-round magazine for maximum capacity right out of the box.
- Configured as a pistol with a buffer tube stock, compliant with current ATF guidelines for pistol builds.
Built For
This AR-15 pistol is built for the practical shooter who understands ballistic efficiency. The 300 Blackout cartridge in this short barrel configuration makes it a top-tier option for defensive use where over-penetration is a concern with 5.56mm. Its compact size also makes it an excellent choice for vehicle-based security or as a dedicated suppressor host.
Specifications
- Caliber: 300 AAC Blackout
- Barrel Length: 7.5 inches
- Handguard: M-LOK compatible free-float tube
- Finish: Hard Coat Anodized (Mil-Spec Type III)
- Includes: 30-round PMAG, pistol buffer tube, and complete upper/lower assembly.
FAQ
Is this a complete firearm?
Yes, this is a complete AR15 pistol. It ships as a configured firearm, requiring only the addition of iron sights or an optic to be range-ready.
Can I should a standard 5.56mm upper on this lower?
Yes, the lower receiver is a standard multi-caliber AR-15 lower. You can swap uppers, but always ensure your overall configuration complies with federal and state laws regarding barrel length and overall length.


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