Audere Hmb Muzzle Break .30 5/8-24 Matte Black FR0003. Specifications for Audere Hmb Muzzle Break: Manufacturer: Audere Color: Matte Black Caliber: .30 Caliber Finish: Oxide Threads per Inch: 5/8x24 Dimensions: 1.55 X 2.65 X 4.65 in Features of Audere...