How do I have the player's projectile not be affected by gravity?

So I have the physics engine in place, my player character has physics platformer movement, my projectile has static physics movement, my ground has non-physics static movement, my player is set to stop falling when it collides with the ground, and my projectile is set to fire from the player's action point. One problem though, the projectile is affected by gravity when shot out, so that means it falls down in an arc. I want the projectile to fly straight ahead without falling down to the ground. Is there any way to counter this?

I uploaded the mfa file so you can see what I'm talking about.