Ballistic Advantage BABL556020M 18-Inch 5.56 NATO Modern Series SPR Barrel with Ops 12 Profile

Ballistic Advantage BABL556020M Modern Series 5.56x45mm NATO 18" Black QPQ Finish 4150 Chrome Moly Vanadium Steel Material Rifle Length SPR Profile with OPS 12 for AR-15

The Ballistic Advantage BABL556020M Modern Series barrel is designed for AR-15 rifle builds requiring an 18-inch SPR-style barrel chambered for .223 Remington and 5.56 NATO ammunition. Its rifle-length configuration supports a balanced setup for precision-oriented applications, while the 1:7 twist rate is suited for stabilizing a broad range of compatible bullet weights. This barrel is configured without sights, making it a practical choice for builds using a low-profile gas block, free-float handguard, and separate optic or sighting system.
The barrel is machined from 4150 chrome moly vanadium steel for a durable foundation and finished with a QPQ corrosion-resistant treatment. The QPQ-coated M4 feed ramp extension helps support smooth and reliable cartridge feeding when properly installed with compatible AR-15 components. The Modern Series SPR profile provides a purpose-built combination of rigidity and handling for users assembling a rifle-length platform with a precision-focused configuration.
A defining feature of the Ballistic Advantage BABL556020M is its extended .750-inch profile area, which is necessary for proper installation of the OPS Inc. 12th Model collar and suppressor system. The barrel is designed to accommodate the OPS 12 setup, but the collar, suppressor, gas system components, and other assembly hardware are not included unless specifically stated. As with any barrel installation, verify chambering, gas system compatibility, headspace, and component fitment before use. Ballistic Advantage combines practical AR-15 compatibility with durable materials and a specialized SPR profile in this rifle-length barrel.

Features:

• Caliber: Chambered for .223 Remington and 5.56 NATO

• Barrel Length: 18-inch rifle barrel

• Model: Modern Series

• Twist Rate: 1:7

• Material: 4150 chrome moly vanadium steel

• Finish: QPQ corrosion-resistant finish

• Feed Ramp: QPQ-coated M4 feed ramp extension

• Profile: Rifle-length SPR profile

• OPS Compatibility: Extended .750-inch profile for OPS Inc. 12th Model collar and suppressor installation

• Sights: No sights included

• Part Number: BABL556020M