Slice each kielbasa ring into 1⁄4 inch thick coins, leaving about 1⁄3 attached. Place kielbasa between two chopsticks or skewers to help guide slices.

Cut each ring crosswise into 1-inch pieces to make bite-sized portions (about 20 per ring). Place in a large bowl.

In a small bowl, combine barbecue sauce, mustard, and maple syrup. Mix well and reserve 1⁄2 cup.

Pour the 1⁄2 cup sauce over the kielbasa and toss gently to coat evenly.

Arrange kielbasa in a single layer in air fryer basket. Air fry at 400°F for 7-9 minutes, shaking halfway, until browned.

Transfer kielbasa to serving platter. Brush with 1⁄4 cup reserved sauce.

Garnish with chopped parsley if desired.

Serve warm with remaining sauce for dipping.

Store leftovers in an airtight container for 3-4 days. Reheat in oven or air fryer before serving.