8 (4 to 5 ounce each) bone-in, skinless chicken thighs
1 (1.1 ounce) pkg chipotle marinade mix
2 tbsp olive oil
1 cup chipotle barbecue sauce or other barbecue sauce
1 avocado, pitted, peeled, chopped
3 tbsp fresh lime juice
1/8 tsp cayenne pepper
8 Bakery hamburger buns

Place chicken in a large plastic resealable bag. In a small bowl combine marinade mix and oil. Pour over chicken; seal bag and turn to coat.
Refrigerate 30 mins or up to 24 hrs.Coat grill rack with nonstick cooking spray.
Preheat grill to medium (300°F to 350°F).