CMMG DEFCAN 57, Suppressor, 5.7, Aluminum, Cerakote Finish, Black, Quick Detach, Includes Zeroed 5.7 Flash Hider 57CA4AD Designed specifically for 4.6x30mm and 5.7x28mm, the DEFCAN-57 is the match made choice for those with a 4.6 BANSHEE or 5.7 DISSENT that want to complement the modern PDW. Boasting greater sound reduction than the DEFCAN-22 for higher pressure .17-.22 cal centerfire cartridges, the DEFCAN-57 features a QD ratchet attachment mount that's compatible with the included ZEROED Flash Hider and MP7 profile muzzle devices.