Pat the chicken wings dry with paper towels. Place wings in a large bowl, drizzle with olive oil, and season with salt and pepper. Toss until evenly coated. Let them sit at room temperature for 20 minutes while you prepare the sauce.
In a medium saucepan over medium heat, combine the brown sugar, honey, soy sauce, lime juice, garlic, ginger, smoked paprika, diced peppers, liquid smoke, and pineapple juice. Bring to a gentle simmer, stirring frequently.
Reduce heat and simmer for 10-12 minutes until slightly thickened. Remove from heat and whisk in butter until melted and incorporated.
Reserve 1/3 of the sauce for basting and serving. Pour the remaining sauce over the prepared wings and toss to coat thoroughly. Cover and refrigerate for at least 2 hours, though overnight marination is recommended for best flavor.
Preheat your grill to medium heat (approximately 350°F). Create a two-zone fire with direct and indirect heat areas. Oil the grates thoroughly to prevent sticking.
Place the wings on the direct heat zone and grill for 5-7 minutes per side until grill marks appear.
Move them to the indirect heat zone, close the lid, and continue cooking for another 20-25 minutes, turning occasionally. Baste with the reserved sauce during the final 10 minutes of cooking.
Wings are done when they reach an internal temperature of 165°F and the skin is crispy.
Garnish with sliced green onions, sesame seeds, fresh cilantro leaves, and serve with lime wedges.