Prep the pork: In a medium bowl, mix the pulled pork with BBQ sauce, apple cider vinegar, brown sugar (if using), smoked paprika, garlic powder, onion powder, and black pepper until evenly coated.
Preheat the air fryer: Set it to 350°F (175°C) for 3 minutes. Preheating helps the pork heat evenly and develop slight crisp edges.
Warm the pork: Line the air fryer basket with a small piece of parchment or foil to catch sauce.
Spread the pork in an even layer. Air fry for 5–7 minutes, stirring halfway, until hot and lightly caramelized.
Toast the buns: Brush the cut sides of the slider buns with melted butter. Place them in the air fryer, cut side up, and toast at 350°F (175°C) for 2–3 minutes until golden.
Assemble: Pile warm BBQ pork onto the bottom buns.
Top with coleslaw, pickles, and any extras you like. Close with the top buns. Sprinkle sesame seeds over the tops if you like a little texture.
Serve: Enjoy right away while warm and saucy.
Keep extra coleslaw and pickles on the side for topping at the table.