Does the military use a suppressor cover on the mk18?

[jsbhike]

This sounds like a game changer and it gets in to the heat issue we’ve been mentioning.

This looks....uhhhh....cool... Ambient suppressors

Had family tell me about seeing this can on some sort of TV news channel. Curious if there are any downsides to it, although probably not anything to negate the reduced potential for serious burns and destruction of property. [This New Suppressor Doesn't Get Hot? Ambient Arms Suppressor]