Close Combat expert

You are used to fighting in close quarters with your firearms. You gain the following benefits:

• When you take the Attack action and attack with only a two handed firearm you can use a bonus action to make a melee attack with the opposite end of the weapon. This attack uses the same ability modifier as the primary attack. The weapon’s damage die for this attack is a d4, and it deals bludgeoning damage.
• When you take the Attack action and attack with only a one handed firearm you can use a bonus action to make a melee attack with a light one handed weapon.
• Being within 5 feet of a hostile creature doesn't impose disadvantage on your ranged attack rolls..