Energized CartridgeConsumable 4
Source Pathfinder Guns & Gears
Price 20 gp
Weight negligible
Usage affixed to a firearm or crossbow
Activate 
envision
Trigger You attempt an attack roll with the affixed firearm or crossbow
Requirements You're trained in use of the affixed firearm or crossbow.
This simple brass shell casing contains trace amounts of alchemical ingredients and is usually attached to the underside of the affixed weapon's barrel. When activated, it causes the ammunition fired from the affixed weapon to transform into your choice of acid, cold, electricity, or fire, dealing damage of the appropriate energy type instead of its usual damage as well as 1d6 persistent damage of the same type on a critical hit.
Effect: Energized Cartridge (Acid)
Effect: Energized Cartridge (Cold)
Effect: Energized Cartridge (Electricity)
Effect: Energized Cartridge (Fire)
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
TalismanA talisman is a small object affixed to armor, a shield, or a weapon (called the affixed item). You must be wielding or wearing an item to activate a talisman attached to it. Once activated, a talisman burns out permanently.
TransmutationEffects and magic items with this trait are associated with the transmutation school of magic, typically changing something's form.