In a small bowl, crush graham crackers until fine crumbs are formed. Set aside.

Preheat your air fryer to 350°F (175°C). Line the air fryer basket with parchment paper or an air fryer liner if desired, to prevent sticking and make cleanup easier.

Unroll the refrigerated crescent roll dough on a clean surface or cutting board. Separate the dough into 8 individual triangles. If desired, you can lightly flatten each triangle a bit with a rolling pin to create a slightly larger surface area.

At the wider end of each crescent dough triangle, place a small amount of milk chocolate chips (or chopped chocolate), a few mini marshmallows, and a sprinkle of graham cracker crumbs. Ensure not to overfill, as the ingredients will expand.

Starting from the wider end, carefully roll each crescent triangle towards the pointed end, enclosing the s'mores filling. Pinch the seams and ends firmly to seal, ensuring no filling escapes during cooking.

Place the sealed S'mores Rolls into the air fryer basket, ensuring they are in a single layer and not overcrowded. You may need to cook in batches. Brush the tops of the rolls with the melted butter.

Air fry for 8-12 minutes, or until the rolls are golden brown and puffed, and the filling is gooey. Keep an eye on them, as air fryer times can vary.

Carefully remove the S'mores Rolls from the air fryer. Let them cool for a minute or two before serving, as the filling will be very hot.