Crossbow is a kind of cold weapon in ancient times, and it is an important part of ancient armored warfare. It's a weapon the infantry can use to control the cavalry. Crossbows are also known as "nest bows" and "crossbows". A weapon used in ancient times to shoot arrows. It is a bow equipped with arms, mainly composed of crossbow arm, crossbow, bow string and crossbow machine.

Slingshot. Got popular in the '70s and' 80s. Slingshot is a cold weapon or game tool. The slingshot is generally composed of three parts: a bow stand, a rubber band and a leather pocket. It is generally made of tree branches in a "ya" shape. The upper two ends are tied with a rubber band, and the middle of the rubber band is tied with a leather piece wrapped with a projectile. The power of the slingshot depends on the tension of the rubber band and the rebound speed of the rubber band, the greater the tension of the rubber band can match the heavier projectile, the faster the rebound speed of the rubber band can provide a larger muzzle velocity of the projectile, the heavier the projectile, the higher the muzzle velocity, the greater the power of the projectile. According to the launching mechanism, the slingshot can be divided into bow blade slingshot and rubber band slingshot. The bow blade slingshot has the most primitive bow type slingshot and catapult crossbow.