A fairly simple muzzle for your Boxer Pro. Print it face down with some supports and you should be fine. I printed mine on a Centauri Carbon and it has a decent tight fit, so your fit may vary. Maybe slice off a section of the connector and do test fits before printing it in it's entirety.
YOU GOT A BIG LMG, YOU NEED A BIG MUZZLE DAWG.
The author remixed this model.
Refit muzzle to fit Boxer Pro.