shotguns

While most weapons are built with high performance and a fairly simple design, the 5 guns below

Some weapons are so dangerous that many areas become dead lands and are prohibited from use in later wars.

Sensors and computer mounted on the rifle will automatically adjust the path, the gunner just to pull the trigger to kill the target.

The 5.6 caliber gun barrel made mostly of plastic molded from a 3D printer could fire successfully, but then broke double.