Firearm Adept

Your interest in firearms gives you the following benefits:

• You gain proficiency with two firearm weapons of your choice.
• You learn two trick shots of your choice from among those available to the Gunslinger Archetype. If a trick shot you use requires your target to make a saving throw to resist the trick shots effect, the saving throw DC equals 8 + your proficiency bonus + your Dexterity modifier.
• You gain one grit point. These points are used to fuel your trick shots. A grit point is expended when you use it. You regain 1 expended grit point each time you roll a 20 on the d20 roll for an attack with a firearm, or deal a killing blow with a firearm to a creature of significant threat (DM's discretion). You regain all your expended grit points when you finish a short or long rest.