The Sonus is engineered to be ultralight at only 9.8oz without sacrificing durability. The precision engineered 17-4 design allows for thinner walls which not only optimize low weight but also increase internal volume while maintaining a small outer envelope. Thinner walls also mean better heat transfer as the silencer convert the kinetic energy of high- speed muzzle gasses into heat rather than sound. All these factors produce an optimized geometry to give you the best possible performance for the most compact, light silencer possible. The Sonus ships with a removable 1/2x28 direct thread adapter and is compatible with all industry standard 1.375x24 HUB or Bravo style quick-disconnect mounting systems.