Caliber: .300 Black Out - Ammo Type: 300 Black Out (Sub- or Supersonic) - Length: 8.0 inches - Weight: 20.3 ounces - Diameter: 1.5 inches - Highly specialized V-shaped baffles provide unprecedented levels of sound attenuation for a .30 caliber suppressor - Designed for 300 Black Out subsonic and supersonic ammo extremely effective for use with .308 300 Win Mag and 5.56mm rounds too - Solid Inconel blast baffle increases durability - Patented Fast-Attach mounting system securely fastens and permits removal of the suppressor in seconds and ensures minimal and consistent point-of-impact shift - Minimal and consistent point-of-impact shift - Lightweight and compact for minimal effect on weapon-handling characteristics - Constructed of advanced high-temperature alloy and stainless steel to remain lightweight and provide a long service life - Made in the USA