Another weapon concept build.
A railgun is a device that uses electromagnetic force to launch high velocity projectiles, by means of a sliding armature that is accelerated along a pair of conductive rails.
This is a sniper rifle which uses conductive rails to propel a projectile forward at extremely high speeds.
The gun comes equipped with a laser range finder, wind speed sensors, ballistics computer, unit to measure inertia, a compass, and a networked tracking engine.

Magnet technology explained: https://youtu.be/OI_HFnNTfyU