This is a complete 7.5″ AR-15 upper assembly chambered in .556/.223, ready to transform your lower receiver into a compact, close-quarters firearm with zero gunsmithing required. Built for shooters who value a no-fuss setup, this upper comes fully assembled from Miami Shooters Supply with a 1:7 twist barrel and a versatile 7″ M-LOK handguard. The key benefit is immediate functionality; you simply mate it with your AR-15 lower receiver, pin it, and you’re ready to head to the range with fast shipping getting it to your door.
Key Features
- 7.5″ Barrel with 1:7 Twist Rate: Optimally stabilizes both lighter .223 rounds and heavier 5.56mm ammunition for consistent performance.
- 7″ Full Picatinny M-LOK Handguard: Features a Picatinny rail at the 12 o’clock position for optics and sights, with M-LOK slots at 3, 6, and 9 o’clock for lightweight accessory mounting.
- No Assembly Required: The upper receiver, barrel, handguard, gas system, and muzzle device are installed and torqued to spec, saving you time and tools.
- Compact & Maneuverable: The short 7.5″ barrel length makes this an ideal upper for building a highly maneuverable AR-15 pistol or SBR platform.
Built For
This upper is ideal for the shooter building a dedicated close-quarters or truck/backpack AR-15 pistol where compact size is critical. It’s also a perfect choice for anyone seeking a simple, reliable way to enter the world of short-barreled AR platforms without investing in specialized assembly tools or expertise.
Specifications
- Caliber: 5.56 NATO / .223 Remington
- Barrel Length: 7.5″ with a 1:7 Twist Rate
- Handguard: 7″ Aluminum M-LOK with Full Top Picatinny Rail
- Compatibility: Fits any mil-spec AR-15 lower receiver; requires a pistol brace or SBU configuration for use without a tax stamp.
- Finish: Likely hard-coat anodized black aluminum for durability (specific coating may vary).
FAQ
Is this a complete upper ready to install?
Yes. This AR-15 upper assembly requires no additional work. It includes the barrel, handguard, gas block, and gas tube already installed. You only need to attach it to your lower receiver.
What muzzle device comes installed?
This upper typically ships with a standard A2 flash hider installed, though specific models may vary. The product photo will confirm the exact muzzle device included from Miami Shooters Supply.


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