A counterweight changed how the spear sat in the hand
A long spear can feel unwieldy because its weight is spread far from the hand holding it. The farther its center of mass—the point where its weight effectively balances—the more leverage the weapon has against the hand and wrist. A metal ball fixed to the butt, or rear end, shifted that balance point back toward the grip.
That shift reduced the forward-pulling feel of the shaft. The soldier could keep the spear steadier without constantly correcting its tendency to tip toward the point. The ball was not just extra weight: its position mattered. Metal placed at the far end could influence the spear’s balance more than the same amount placed close to the hand.
A steadier hold, with a tradeoff
A rear weight did not make the spear weightless or effortless to move. It added mass, and a heavier weapon still demanded strength. But bringing the balance closer to the hand could make a long shaft feel more manageable, especially when held out for an extended time.
The design reflects a practical compromise: rather than shortening the weapon, its makers altered how its weight was distributed. A small object at the back could change the feel of the whole spear—turning a long pole that wanted to dip forward into one that was easier to hold on line.
