Aut cum scuto aut in scuto
I would hope that is 300 BLK, 6.5Grendel, 6.8SPC, .458Socom or a large bore wildcat x45 based off the .223 and load it for 1000-1050fps to keep it subsonic. Loose the carry handle/front sight and replace it with a holographic sight. Also put a can on it.
very cute. does it come in chrome?