Slinger

General Feat (Prerequisite: Level 4+, Strength or Dexterity 13+, Halfling)

You gain the following benefits.

Ability Score Increase. Increase your Dexterity or Constitution score by 1, to a maximum of 20.

Sling´s Lord. When you attack with a Sling, you can replace the Slow mastery property with the Sap or Vex property for that attack. You can use this benefit only once per turn.

Yes, it's a weapon. When a creature you can see targets you or another creature with a melee or ranged attack, you can take a Reaction before the attack roll to make one attack with a Sling against that creature.