Laser Gun

Laser Gun is laser type weapon developed by H.A.R.M. on their space station. It's the predecessor of the upgraded prototype Super Atomic Laser Weapon.

Overview
Being the predecessor, Laser Gun is weaker than the Super Atomic Laser Weapon, requires several shots to kill an opponent. It fires red laser beam and has the same rate of fire with the Super Atomic Laser Weapon, but accuracy is slightly worse.

Appearance

 * H.A.R.M's soldiers use Laser Guns in the mission Low Earth Orbit to combat Archer as she fights back with the Super Atomic Laser Weapon stolen from their lab. Because the the Super Atomic Laser Weapon will vaporize someone upon death, it can be quite difficult to obtain the standard Laser Gun. However, it is still possible to sneak up behind a H.A.R.M soldier who already has his Laser Gun drawn (for example, after letting him see you just long enough to investigate your last known position without actually detecting you), and strike him in the head with your hand to kill him, thus making the Laser Gun obtainable. Another way to unlock this weapon in Single Player is using Cheat code to unlock all weapons and then finish a mission with it.
 * Laser Gun is usable in Multiplayer, available to both H.A.R.M and UNITY units.

External link
Laser pistol on Wikipedia