Depends on who he said it to and what his prior criminal history looks like.
https://www.inmateaid.com/ask-the-inmate/my-fianc-eacute-is-in-jail-for-saying-he-was-going-to-beat-the-brakes-off-someone-how-long-does-he-have-to-serve-or-what-would-he-get.amp#answer
Accepted Answer Date Created: June 18,2019