Types
Two common types of flash suppressors are the duckbill and birdcage suppressors. Duckbill flash suppressors have upper and lower "prongs" and direct gases to the sides. Early M60 machine guns and some early M16 models featured this type of flash suppressor. One disadvantage is that the prongs can become entangled with vines or other natural vegetation and objects in the field. Birdcage types still have prongs, but also feature a ring on the front to prevent vegetation entanglement between the prongs. Another type of flash suppressor is a flash moderator, such as used on some CAR-15 models. Some examples of cone-shaped hiders are on the Bren machine gun, the .303 Rifle No 5 Mk 1 "Jungle Carbine", and some models of the RPK and German MG3.
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