A classic look for modern times. Wilson Combat's A2 Birdcage flash hider is a genuine mil-spec part designed for .223 Rem and 5.56 NATO calibers. This flash hider features a standard 1/2"x28 thread pattern for easy installation on compatible firearms and measures 7.9 inches in length.Key FeaturesCaliber Compatibility: Designed for .223 Rem and 5.56 NATO calibers.Thread Pattern: Features a standard 1/2"x28 thread pattern for easy installation on compatible firearms.Length: Measures 7.9 inches in length for optimal performance.Color: Finished in black for a sleek appearance.