The CMMG DefCan 57 is a dedicated suppressor designed for use with modern PDW calibers, specifically 4.6x30mm and 5.7x28mm. It pairs a lightweight tube with stainless steel baffles and a ratchet-style QD attachment compatible with the included ZEROED 5.7 flash hider. The unit offers increased sound reduction over the DefCan 22 and is finished in Cerakote black for durability.

Key Specifications

• The suppressor is specified for 4.6x30mm and 5.7x28mm calibers.
• The muzzle thread pattern is 1/2″x28.
• The overall length is 8.75 inches.
• The listed weight is 17.8 oz.
• The finish is Cerakote (black).
• Included accessory is the ZEROED 5.7 flash hider (1/2-28 threaded).
• The mount style is a QD ratchet attachment compatible with MP7-profile muzzle devices.
• Baffle material is specified as stainless steel.
• The tube material is specified as aluminum.
• The QD mount material is specified as steel.

Lightweight and purpose-built for PDW platforms chambered in 4.6x30mm or 5.7x28mm, the DefCan 57 offers a practical balance of reduced sound signature and minimal added mass. Its combination of stainless steel baffles, aluminum tube construction, and ratchet-style attachment make it suitable for users seeking a durable, compact suppressor that integrates with modern muzzle devices.