A slingshot (also sometimes called a catapult, shanghai, or katty) is a small hand-powered projectile weapon. The forked Y-shaped frame has two rubber strips attached to the uprights, leading back to a pocket for holding the projectile.
It is normally fired by holding the frame in the non-dominant hand, extended at arms length. The pocket is then gripped between thumb and forefinger of the dominant hand, pulled back to near the cheek, aimed, and the pocket released to fire the projectile toward the target.
Home-made slingshots were a popular children's toy for much of the twentieth century.
It relies upon the availability of vulcanized rubber. The most common source of rubber was from the inner tubes of tires, and so it seems unlikely that they were constructed before 1888. Once invented they became an archetypal boy's toy up until shortly after World War II. These were generally self-made from a forked tree branch and "red rubber" inner tubes. (Later inner tubes had carbon-black added, which made them much less elastic. Modern inner tubes use synthetic rubber, and in fact quite a few tires are now tubeless).
Commercial versions were available from early on, and in 1948 Wham-O had as their first product a slingshot, but the sophisticated modern models start with the first wrist-braced slingshot—the Saunders "Wrist-Rocket", in 1954.
Many more powerful commercial slingshots now have a wrist-braces, and some models have stabilizers, rotating prongs, sighting mechanisms and other sophisticated improvements. While these are not necessary, they usually improve the power, lifespan of the bands and accuracy.
The material for the rubbers is critical. The best widely-available material is dipped latex rubber surgical tubing or latex sheeting. It lasts about six months before it needs to be replaced. It can be attached to the frame and packet by stretching it over a metal rod of the correct diameter. Some slingshots have been constructed of metal tubing of the exact diameter. Rubbers should be stored under water away from sunlight, which causes them to stiffen and crack.
A slingshot champion appearing on the David Letterman Show some years ago said to hold the projectile pocket at a fixed position near the body, such as the hip, and move the frame based on gut feeling and practice, just like a gunslinger or hip-shooter in the American wild west. Many gunslingers could hit a target without raising their weapon to eye level.
The common slingshot is made out of wood and rubber tubing. Usually it has a leather pouch in which one places a projectile.
, some paintball playing fields may not allow them.