Build a compact, high-performance AR pistol with this 7.5″ 5.56 NATO barrel from Miami Shooters Supply. Designed for shooters who prioritize a maneuverable and lightweight platform, this pistol-length barrel is the core component for a serious close-quarters build. Its 1:7 twist rate is engineered to stabilize a wide range of modern 5.56 ammunition, ensuring reliable performance from a very short package. We ship fast so you can get your build started without delay.
Key Features
- Pistol-length gas system for reliable cycling with a 7.5″ barrel length.
- 1:7 twist rate optimally stabilizes both lighter 55gr and heavier 62gr+ 5.56/.223 projectiles.
- Manufactured from 4150 chrome moly steel for durability and consistent performance.
- Precision-machined M4 feed ramps for enhanced feeding reliability.
- Mil-spec diameter journal ensures compatibility with standard AR-15 handguards and barrel nuts.
- Threaded 1/2×28 muzzle accepts common flash hiders, compensators, or suppressors (with proper mounting).
Built For
This barrel is the ideal choice for builders assembling a dedicated AR pistol or a compact PDW-style firearm. It’s suited for close-range training, tactical vehicle use, or as a highly portable option for recreational shooting where a full-length rifle is impractical.
Specifications
- Caliber: 5.56 NATO (.223 Remington).
- Length: 7.5 Inches.
- Twist Rate: 1 turn in 7 inches (1:7).
- Gas System Length: Pistol.
- Material: 4150 Chrome Moly Steel.
- Muzzle Thread: 1/2″x28 TPI.
FAQ
Is this barrel suitable for a first-time AR builder?
Yes, if you are building a pistol-configuration AR-15. It requires a pistol-length gas tube and low-profile gas block, which are standard AR-15 parts. Ensure you understand your local and federal regulations regarding AR pistols.
How is velocity affected with a 7.5″ barrel?
Significantly. A barrel this short will produce substantial muzzle flash and report, and velocity will be reduced compared to a 16″ rifle barrel. It is designed for compactness and maneuverability, not for long-range ballistics.
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