Prepare the Chicken: Preheat grill to medium-high heat (about 400°F). Lightly brush chicken breasts with olive oil. Season both sides with garlic powder, salt, and black pepper.
Grill the Chicken: Place chicken on the grill and cook for 6–7 minutes per side, flipping once. During the last 3–4 minutes of cooking, brush generously with Bullseye BBQ sauce, turning once to glaze both sides. Chicken is done when internal temperature reaches 165°F.
Rest: Remove chicken from the grill and let rest for 5 minutes before serving to keep it juicy.
Serve: Plate the BBQ grilled chicken. Add extra BBQ sauce on the side if desired.