Ballistic Advantage 9mm 4.5 Inch Barrel - Straight Profile with 1/2x28 Threads - Gen 1 - (DISCONTINUED)

Super-Shorty AR-9 Barrel for Defensive Pistols Specialized for personal defense AR-9 builds, this barrel's length is a mere 4.5 inches, including the barrel extension. The length is equivalent to most standard full-size handguns, so the ballistic performance is similar. That means you gain incredible handling with your AR, with a short, stiff barrel that is [...]