Preheat oil in a deep skillet to 350°F (175°C).
Season chicken with salt and pepper.
Dredge chicken in flour, dip in beaten eggs, then coat with panko.
Fry chicken in batches until golden and cooked through, about 3–4 minutes per side.
Transfer to a paper towel-lined plate.
In a bowl, whisk mayonnaise, sweet chili sauce, sriracha, and honey until smooth.
Lightly toast slider buns.
Place crispy chicken on bottom buns, drizzle generously with Bang Bang sauce.
Add lettuce if desired, then top with remaining buns.
Serve immediately.