Ballistic Advantage Modern Series 5.56 NATO 18in SPR Barrel

Description

The Ballistic Advantage Modern Series BABL556020M is an 18 inch rifle-length barrel chambered for .223 Rem / 5.56 NATO and intended for AR-15 platforms. It is machined from 4150 Chrome Moly Vanadium steel and finished with a QPQ corrosion-resistant coating. The barrel uses an SPR contour and incorporates an extended 0.750-inch profile dimension to accept the OPS Inc. 12th model collar and suppressor. A QPQ-coated M4 feed ramp extension is included for consistent feeding.

Key Specifications

• Manufactured by Ballistic Advantage (Modern Series).
• Chambered for .223 REM/5.56 NATO.
• The barrel length is 18 inches in a rifle-length configuration.
• Machined from 4150 Chrome Moly Vanadium steel.
• Finished with a QPQ corrosion-resistant coating.
• Twist specification of 1:7.
• Barrel contour is a Rifle Length SPR profile.
• Features an OPS 12 profile for use with OPS Inc. 12th model collars.
• Muzzle threads are 1/2-28.
• Gas system length is specified as Rifle.

Designed for builders and users who prioritize durability and compatibility, this Modern Series barrel delivers service-grade materials and a corrosion-resistant finish with an OPS 12-compatible profile. Its SPR contour and rifle gas dynamics are suitable for accuracy-focused AR-15 builds and duty-minded applications where robust construction and accessory compatibility matter. The result is a practical, application-focused barrel option for range, competition, and field-oriented assemblies.