Preheat oven to 350°F (175°C).
In a bowl, mix shredded chicken with buffalo sauce until evenly coated.
Slice the slider buns horizontally as one unit.
Place the bottom half of the buns into a greased baking dish.
Spread buffalo chicken evenly over the buns, then top with cheese.
Place the top half of the buns back on.
Mix melted butter with garlic powder, onion powder, and salt.
Brush butter mixture generously over the tops.
Cover loosely with foil and bake for 12–15 minutes.
Remove foil and bake another 5 minutes until tops are lightly golden.
Let rest 5 minutes before serving.