YHM's .30 caliber sound suppressor, the Resonator, was created to provide the shooting enthusiast a quiet, lightweight and cost effective suppressor. The notched rim and tri-port muzzle on the end cap make it stand out among the crowd. Capable of being used on multiple calibers and host weapons, the Resonator R2 can be used on rifle calibers ranging from .17 HMR through 300 RUM making it a great choice for all shooters.