In that case, you'd have a troll that can do almost as much damage with just his fists.
But just for the sake of the argument:
Gas Vent III (3) + Electric Firing (1) + Gyromount (6) + basic compensation (1) + Shock Pad (1) - basic recoil (6) = 6
So yes, you could use it for short FA bursts, provided you aim after each burst. But that doesn't make it any more practical...