1. To make a gun handle, first fold the prepared paper into strips, and then fix the two sides with adhesive tape.

2. Make a barrel and roll the paper into a round tube for later use. Install the barrel, insert the paper into the newly folded gun handle, and the two ends of the paper pass through the cuffs on both sides of the gun handle respectively.

3. Cut a small hole in the back of the barrel and install the trigger to adjust the position slightly.

4. Cover the barrel with the rubber band we prepared and connect the trigger.

Gun (formerly known as spear, spear, musket and iron cannon) is a kind of weapon that uses the energy of gunpowder gas to fire bullets and attack unprotected or weakly protected living targets. Gun is the main weapon of infantry in the army and also the auxiliary weapon of other arms. Widely used in public security, hunting, sports competitions and other fields.

For a long time, "gun" has been the most basic fighting weapon in the hands of "soldiers". Along the track of their emergence, development and evolution, people can clearly see the tragic development history of human wars.

The ancestor of the gun is the firedoor gun. Rifles have changed: firebomb guns, matchlock guns, revolvers, flintstones, firing guns and gatling guns-renju guns, bolt rifles, machine guns, semi-automatic rifles and automatic rifles (assault rifles), which may eventually be replaced by ideal individual combat weapons in the future.