Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper to prevent sticking.
Pat the chicken wings completely dry with paper towels; removing moisture is the secret to achieving a crispy skin without deep frying.
In a large mixing bowl, toss the wings with avocado oil, sea salt, black pepper, garlic powder, and smoked paprika until every piece is evenly coated.
Arrange the wings in a single layer on the prepared baking sheet, ensuring they are not touching so the heat can circulate properly.
Bake for 25 to 30 minutes, flipping the wings halfway through the cooking time, until they are golden brown and the skin is crisp.
While the wings roast, whisk together the sugar-free BBQ sauce, sriracha, and apple cider vinegar in a small bowl to create the glaze.
Once the wings are done, transfer them to a clean bowl, pour the spicy BBQ glaze over them, and toss until thoroughly coated.
Return the glazed wings to the baking sheet and bake for an additional 3 to 5 minutes until the sauce is bubbly and tacky.
Remove from the oven, garnish with thinly sliced green onions, and serve while hot.