Pat the drumsticks completely dry with paper towels. In a large bowl, whisk together the peri peri sauce, olive oil, lemon juice, garlic, smoked paprika, salt, pepper, and oregano.
Add the drumsticks and toss to coat thoroughly. Marinate for at least 30 minutes at room temperature, or up to 4 hours in the refrigerator for the best flavor.
Preheat the air fryer to 380F. Arrange the drumsticks in a single layer with space between them. Air fry for 12 minutes.
Flip the drumsticks, brush with any remaining marinade from the bowl, and increase the temperature to 400F. Air fry for another 8-10 minutes until the skin is charred and crispy and the internal temperature reaches 175F.
Let the drumsticks rest for 3 minutes, then serve with lemon wedges and a sprinkle of fresh parsley.