Assassin's Pocket Cannon

This magic weapon warns you of danger. While the weapon is on your person, you have advantage on initiative rolls. In addition, you and any of your companions within 30 feet of you can’t be surprised, except when incapacitated by something other than nonmagical sleep. The weapon magically awakens you and your companions within range if any of you are sleeping naturally when combat begins.

This weapon adds a +2 to all attack and damage rolls.

You can choose to use this weapon as either a melee or ranged weapon. When you choose, you must use that attack type until your next turn.

Arcane Cannon (Ranged): This is a magic weapon that creates its own magic ammunition. It ignores the loading property for firearms. 

Assassin's Edge (Melee): If used as a melee weapon, it is shares the same properties as a handaxe, but it deals 2d6 damage instead.

 

Firearms are a new and volatile technology, and as such bring their own unique set of weapon properties. Some properties are followed by a number, and this number signifies an element of that property (outlined below). These properties replace the optional ones presented in the Dungeon Master’s Guide. Firearms are ranged weapons.

Reload. The weapon can be fired a number of times equal to its Reload score before you must spend 1 attack or 1 action to reload. You must have one free hand to reload a firearm.

Misfire. Whenever you make an attack roll with a firearm, and the dice roll is equal to or lower than the weapon’s Misfire score, the weapon misfires. The attack misses, and the weapon cannot be used again until you spend an action to try and repair it. To repair your firearm, you must make a successful Tinker’s Tools check (DC equal to 8 + misfire score). If your check fails, the weapon is broken and must be mended out of combat at a quarter of the cost of the firearm. Creatures who use a firearm without being proficient increase the weapon’s misfire score by 1.

Ammunition
All firearms require ammunition to make an attack, and due to their rare nature, ammunition may be near impossible to find or purchase. However, if materials are gathered, you can craft ammunition yourself using your Tinker’s Tools at half the cost. Each firearm uses its own unique ammunition and is generally sold or crafted in batches listed below next to the price.

Proficiency with a Pistol allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Advantage: Initiative, Bonus: Magic, Weapon Property: Light, Reload(1), Misfire(2), Artificer, Blood Hunter, Fighter, Ranger, or Rogue with Firearms Proficiencies, Damage, Detection, Combat, Loading, Range, Ammunition (Firearms), Vex