01 - Whisk together olive oil, BBQ sauce, soy sauce, honey, minced garlic, smoked paprika, salt, and pepper in a large bowl until thoroughly combined.
02 - Add chicken cubes to the prepared marinade, toss to coat evenly. Cover bowl and refrigerate for minimum 30 minutes, up to 2 hours for enhanced flavor penetration.
03 - Soak wooden skewers in water for 30 minutes to prevent burning during grilling.
04 - Thread marinated chicken, pineapple chunks, bell pepper pieces, and red onion wedges alternately onto skewers, leaving small gaps between pieces for even heat circulation.
05 - Preheat grill or grill pan to medium-high heat. Lightly oil grates to prevent sticking.
06 - Grill for 12-15 minutes, rotating every 3-4 minutes and basting with remaining marinade, until chicken reaches internal temperature of 165°F and develops char marks.
07 - Transfer skewers to serving platter, garnish with fresh cilantro, and accompany with lime wedges.