Flash Guard 5.45 Details Muzzle Attachments | COD Black Ops Cold War | Call of Duty Attachment TypeMuzzle Attachments | COD Black Ops Cold War | Call of Duty Flash Guard 5.45 Stats - Pros and Cons: Muzzle Flash Concealment 90.00 s Weapon Blueprints That Equip Flash Guard 5.45: Cableknit Knuckle Buster Scorch Agency Silencer Muzzle Brake 5.45