Board Thread:General Discussion/@comment-112.215.66.71-20150114114811/@comment-6881629-20150526132559

You can't equip those items like normal from the inventory because their invisible but you can to use the console to equip and un equip them, to spawn and equip the bow -

player.additem 000deed8 1

player.equipitem 000deed8

Again though i think its better to use a mod to add a craftable (and upgradeable) version than spawning an invisible one.