Horde sentry upgrades increase the damage they deal?

Obviously upgraded sentries have more energy, range and resilience, but will a lv4 one deal more damage than a lv1?

Not sure about that??? More range, take more damage and hold more ammo though. Both Baird and Del have a card that lets MG sentries do more damage. Bairds card does 30% more damage when on lvl 5. I think Kat might have one as well.