45 and a fistful of ammo which he is happily using but I notice that in melee with, say, Ferals, he resorts to pistol-whipping them.
45 so I assumed he was Perked for non-auto pistols (not that there is any way of telling). I have already understood that by default, Companions have a generi-weapon with infinite Companion Ammo and that if you ask them to use a looted or crafted one you have to provide the ammo but what about melee weapons or armour?