Pistol Whip

You are proficient at using a firearm as a melee weapon and can do so without breaking it. Small firearms are treated as light hammers, Medium firearms are treated as clubs, and Large firearms are treated as warhammers.

Any character may use a firearm as a melee weapon; however, the character is not necessarily proficient with the weapon (determine proficiency based on the weapon the firearm is treated as), and the firearm is broken if it hits. It cannot be fired until repaired with a Craft (mechanical object) check.

A fighter may select Pistol Whip as one of his fighter bonus feats.

You can use a firearm as an improvised melee weapon without damaging it.