Grill pork on medium heat, turning often, until fully cooked.
While the pork is grilling, prepare the slider toppings.
To toast the buns, lightly butter them and place them butter-side-down on the grill until lightly toasted.
When the pork is done (145 degrees), remove it from the grill and let it rest on a cutting board for a few minutes. Slice the pork thinly and assemble sliders.