Ammunition, +1, +2, or +3
Weapon · Uncommon–Very Rare · SRD 5.2.1 p. 209
Weapon (Any Ammunition), Uncommon (+1), Rare (+2), or Very Rare (+3)
You have a bonus to attack rolls and damage rolls made with this piece of magic ammunition. The bonus is determined by the rarity of the ammunition. Once it hits a target, the ammunition is no longer magical.
This ammunition is typically found or sold in quantities of ten or twenty pieces. Ten pieces of this ammunition are equivalent in value to a potion of the same rarity.