EMRG-50 Rail Gun

The EMRG-50 rail gun was an Arachnoid built rail gun for use for soldiers.

A heavy rifle, the rail gun was designed to be carried by a soldier into battle, and boasted four large magazine fed metallic slugs. With an minimum range of a hundred meters, and a maximum range of four thousand meters, the rifle was capable of delivering a slug with pinpoint accuracy, while simultaneously dealing damage on par with a fragmentation grenade; because of this, it was often assigned to anti-vehicular duty.

Despite it's damage and range however, the weapon had a single severe drawback; recoil. Requiring highly specific training to use effectively in the field, the EMRG-50 boasted such a high recoil that it was all but unusable by sentients without a strength factor nearly double that of a standard human.

Source

 * Twin Stars of Kira