The FSX-FO is a very fun slingshot. If you use light ammo (like airsoft ammo) it is weak, but if you use heavy ammo (steel shot, rocks, marbles ect.) it can eaisly puncture a variety of materals. Very accurate. I am hoping i can get the Trumark Power Band on is when the orignal band goes bad. Very fast shipping (I used Free Super Saver Shipping) and loved it out of the box.