Yes a slingshot can be used on small game, you may not kill it out right but you will at least stun it long enough that you can finish it off with your knife or a club. As for just packing the pouch and band unless you are a skilled wood worker take the frame too. They are light and take up little space and if you run out of the steel shot you can use rocks as ammo. The down side of slingshots is that they take time to get good at them and the range, but like all things if you work at it your aim will improve