Is it possible? It doesn't seem to be. Or at least the weapon you add on to the spear should be removable after it breaks. It seems really odd to me that you can put a 100% condition hunting knife to a stick with some duct tape and when the spear breaks (very quickly, I might add) the whole thing is ruined and you can't repair it or get your knife back. I wouldn't expect a flimsy spear to last very long, that much makes sense. But it makes 0 sense for the weapon you added to said flimsy spear to be unrecoverable. In another survival game I enjoy (Neo Scavenger) if you create a spear, it's the condition of the lowest health part that decides the condition of the spear itself, and when it does you get the parts back that didn't break (with lowered condition depending on use). I would like to see the same thing in PZ.