The Ballistic Advantage 5.56 NATO 18" AR-15 Barrel – SPR Rifle Length w/ OPS 12 is a duty-ready, modern series barrel designed for precision and reliability. Featuring an 18" length for an optimal velocity-to-length ratio and a heavy SPR profile for enhanced rigidity and repeatable accuracy, this barrel is well-suited for a special purpose rifle build.

The tapered SPR profile ensures a durable yet handy barrel, while the rifle-length gas system provides excellent reliability and a soft recoil impulse. Designed to accommodate the OPS Inc. 12th Model suppressor collar, this barrel is optimized for suppressed use. Precision-machined, HP/MPI tested, and backed by Ballistic Advantage's sub-MOA accuracy guarantee with match-grade ammunition, it delivers outstanding performance for a duty or precision rifle build.

Specs:

• Caliber: 5.56 NATO
• Barrel Length: 18"
• Material: 4150 CMV Steel
• Finish: QPQ Corrosion-Resistant Nitride
• Barrel Profile: SPR (MK12 Mod H with .750" Gas Block Profile)
• Gas System: Rifle Length
• Twist Rate: 1:8
• Muzzle Thread: 1/2x28
• Weight: 41 oz