Pat drumsticks or legs dry with paper towels.
Using a sharp knife or metal skewer, poke 10 to 15 holes in skin of each drumstick or chicken leg.
Rub with oil and sprinkle evenly with salt and pepper.
Arrange drumsticks in air fryer basket, spaced evenly apart, alternating ends and skin side up if using chicken legs.
Place basket in air fryer and set temperature to 400 degrees.
Cook until chicken DRUMSTICKS are crisp and register 195 degrees, 22 to 25 minutes, flipping and rotating chicken halfway through cooking.
Cook until chicken LEGS are well browned and crisp and register 195 degrees, 27 to 30 minutes, rotating chicken halfway through cooking but do not flip the chicken.
Cook until chicken THIGHS are well browned and crisp and register 195 degrees, 20 to 30 minutes, rotating chicken halfway through cooking but do not flip the chicken.
The problem with exact timing is that chicken thighs range in size. If you have smaller thighs, check at 20 minutes and large thighs check at 26 minutes or more.
Cover each with honey mustard sauce, using a brush if possible.
Bake for another 5 minutes.
Remove from fryer and coat with more sauce.
Serve with additional sauce on the side if desired.
Transfer chicken to large plate, tent loosely with aluminum foil, and let rest for 5 minutes.
Serve and enjoy every bite.