The 20" 7mm will do that, and be slightly better ballistically.
It'l probably be shorter or at least comparable in length to a 16" + suppressor as well.
Personally ill take a couple extra inches of barrel over a suppressor. Sure you could shoot the 16" with no suppressor to equal or better the handyness of the 20" 7mm, but then you are left with something that is brutally loud and still not as efficient ballistically.
Whatever floats your boat. Everything is a trade off.
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