Help making a magic gun for a gunslinger

[Zeromage]

What properties can they have beyond just +x? I can't find any helpful resources for making magic guns.

[LazarX]

Try looking at ultimate Combat for some clues.

For the most part, you would use the same enchantments you'd put on a crossbow.

[revaar]

Just scrolling through the PRD:

Reliable is a good one to have.
Greater Reliable is also good, but may be overkill.
Distance is a godsend, especially to pistols. 20 to 40 feet can mean a world of difference.
Lucky can be nice if you find yourself running out of grit often.
Greater Lucky is also good.