Path of the Gunzerker

A Gunzerker is a barbarian who has found bloodlust through firearms. The explosive force of the gun drives their rage. 

Gun Crazy

When you choose this path at 3rd level,  your firearms sate your rage as well. 

While raging you get bonus rage damage with firearms. You can also benefit from any Barbarian abilities while using firearms

Bullet and Bash

Bullets aren’t they only thing that can be used as a weapon. 

Starting at 6th level, when you use the attack action with a firearm, you can use a bonus action to make a melee weapon attack with the gun itself. The damage is 1d6 + Strength modifier bludgeoning damage

Trigger Happy

Two guns are better than one. 

At 10th level, you can draw or stow two firearms when you normally could draw or stow one. You also can wield any two-handed firearm with one hand. You don’t need a free hand to reload/load. 

Approaching Danger

Starting at 14th level, when a creature moves within 10 ft. of you, you can use your reaction to make a ranged firearm attack against it.