Firearm Proficiency

Starting when you choose this archetype at 3rd level, you gain proficiency with firearms. These firearms have their own unique set of weapon properties, and replace the optional firearms found in the DMG.

Gunsmith

Upon choosing this archetype at 3rd level, you gain proficiency with gunsmith's tools. If you already have this proficiency, you gain proficiency with one other type of artisan's tools of your choice.

Adept Marksman

When you choose this archetype at 3rd level, you learn to perform trick shots.

Trick Shots. You learn two trick shots of your choice. Each use of a trick shot must be declared before the attack roll is made. You can use only one trick shot per attack. You learn an additional trick shot of your choice at 7th, 10th, 15th, and 18th level. Each time you learn a new trick shot, you can also replace one trick shot you know with a different one.

Grit. You have four grit points. You regain all expended grit points after a short or long rest. You gain another grit point at 7th level and one more at 15th level.

Saving Throws. The saving throw DC for trickshots is calculated as 8 + your proficiency bonus + your Dexterity modifier.

Quickdraw

When you reach 7th level, you add your proficiency bonus to your initiative. You can also stow a firearm, then draw another firearm as a single object interaction on your turn.

True Grit

Starting at 10th level, when you roll initiative and have no grit points remaining, you regain 1 grit point.

Lightning Reload

Starting at 15th level, you can reload any firearm as a bonus action.

Vicious Intent

At 18th level, your firearm attacks score a critical hit on a roll of 19-20, and whenever you score a critical hit on an attack with a firearm, the target additionally suffers half of the damage from the attack at the end of its next turn.

Firearm Proficiency

Starting when you choose this archetype at 3rd level, you gain proficiency with firearms. These firearms have their own unique set of weapon properties, and replace the optional firearms found in the DMG.

Gunsmith

Upon choosing this archetype at 3rd level, you gain proficiency with gunsmith's tools. If you already have this proficiency, you gain proficiency with one other type of artisan's tools of your choice.

Pioneer Spells

Starting at 3rd level, you always have certain spells prepared after you reach particular levels in this class, as shown in the Pioneer Spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

Focus Fire

Also at 3rd level, you know how to turn a firearm into a spellgun. When you finish a long rest, you can use gunsmith's tools to make arcane modifications to a firearm, turning it into a spellgun. These modifications are deactivated or destroyed if new modifications are made to a different firearm, but otherwise last indefinitely.

You can use your spellgun as a spellcasting focus for your artificer spells. When you attack with your spellgun, you can use your Intelligence modifier, instead of your Dexterity modifier, for its attack and damage rolls.

Extra Attack

Starting at 5th level, you can attack twice, rather than once, whenever you take the Attack action on your turn.

Infused Munitions

Starting at 9th level, your spellgun imparts an infusion upon nonmagical ammunition it fires, improving weapon reliability in some cases. When your spellgun is used with nonmagical ammunition for spells involving weapon attacks or firing ammunition, or for performing trick shots, duplicated rounds are fired instead and the weapon's misfire score is ignored. This ability does not count against your known or created infusions.

Spellslinger

By 15th level, you have mastered the ability to store spells within your spellgun. When you use the Spell-Storing Item feature on your spellgun, your choice of spells is expanded up to 5th-level. 3rd- and 4th-level spells can be used a number of times equal to your Intelligence modifier (minimum of once). 5th-level spells can be used a number of times equal to half of your Intelligence modifier rounded up (minimum of once).

If you attempt to use a 3rd- or higher level spell that normally has consumable material components, these materials must be consumed when producing the spell's effects, otherwise the spell will automatically fail.

Cordon of Gunfire

2nd-level transmutation

• Casting Time: 1 action
• Range: 5 feet
• Components: V, S, M (four or more pieces of firearm ammunition)
• Duration: 8 hours

You plant four nonmagical pieces of firearm ammunition in the ground within range and cast magic upon them to protect an area. Until the spell ends, whenever a creature other than you comes within 30 feet of the ammunition for the first time on a turn or ends its turn there, one piece of ammunition shoots out to strike it. The creature must succeed on a Dexterity saving throw or take 1d6 piercing damage. The piece of ammunition is then destroyed. The spell ends when no ammunition remains.

When you cast this spell, you can designate any creatures you choose, and the spell ignores them.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the amount of ammunition that can be affected increases by two for each slot level above 2nd.

Artificial Grit

4th-level divination

• Casting Time: 1 action
• Range: Self
• Components: V, S, M (a powder horn of smokepowder worth 50 gp)
• Duration: 1 minute

You draw upon the knowledge of seasoned gunslingers. You gain a number of grit points equal to half of your Intelligence modifier rounded up (minimum of one) and learn two trick shots of your choice for the duration of the spell. When all of the grit points gained from this spell are expended, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 5th level, you instead gain a number of grit points equal to your Intelligence modifier (minimum of one) and learn all trick shots for the duration of the spell.

Swift Trigger

5th-level transmutation

• Casting Time: 1 bonus action
• Range: Touch
• Components: V, S, M (a firearm)
• Duration: Concentration, up to 1 minute

You cast transmutational magic on your weapon to enhance its mechanisms, enabling more rapid fire. On each of your turns until the spell ends, you can use a bonus action to make two attacks with the affected weapon. If the weapon leaves your possession, the spell ends.

Flavouring Spells

Spells cast from a spellgun can be flavoured as being produced by the weapon. E.g. grease fires fat globules from the gun's barrel; catapult shoots energy at an object, then the user aims in the target direction.

Gunner (Revised)

This pre-existing feat has been modified to better suit Matt Mercer's firearm rules.

You have a quick hand and keen eye when employing firearms, granting you the following benefits:

• Increase your Dexterity score by 1, to a maximum of 20.
• You gain proficiency with firearms.
• You gain one grit point and learn two trick shots of your choice. You regain this grit point when expended after a short or long rest.
• Being within 5 feet of a hostile creature doesn’t impose disadvantage on your ranged attack rolls.

Minor Revisions

A spellgun is now added to the list of items applicable for the Enhanced Arcane Focus infusion. The Repeating Shot infusion can now be applied to firearms, but does not affect reloading in any fashion and, when firing the magic ammunition, the misfire score of the weapon is increased by 1. For the purpose of applicability for infusions, firearms should be considered martial weapons.

The flame arrows spell can now be applied to twelve or more pieces of nonmagical firearm ammunition. The extra 1d6 fire damage is applied when a target is hit by this magic ammunition. The spell’s magic ends on the piece of ammunition when it hits or misses, and the spell ends when all of the affected pieces of ammunition have been fired.