I was thinking that since the Engie has the Short Circuit to deal with projectile spam, this pistol could be used to deal with the Spy and his Sapper. Same damage falloff as the pistol, but with significantly decreased range and increased accuracy with a slight damage increase to disguised or invisible Spies. Projectiles have the same speed as those of the Pompson.

When this weapon is active:
Fires a laser-like projectile
Projectiles cannot be reflected
Projectiles have a max range of 25 feet (400 Hammer Units)

+50% more accurate
Upon hitting a Sapped Building: damages Sappers (equivalent to 1 Wrench strike)
On hit: deals 15% more damage to Cloaked or Disguised Spies

-90% max ammo capacity (20 ammo as opposed to the pistol's 200)
-66% firing speed (2 shots per second as opposed to the pistol's 6)
-15% clip size (only 2 shots per clip)
-25% reload speed
Cannot refill ammo from Dispensers or Ammo Boxes while weapon is active

What do you guys think?