Generously spread mayonnaise on each side of the bun (on the cut side).
Break each piece of bacon in half and add 4 pieces (equal to 2 whole pieces of bacon) to each of the bottom sides of the bread.
Then, add a slice of tomato on top of the bacon and sprinkle it with pepper. Next, add the slices of avocado on top of the tomato (use ¼ of the avocado slices per slider) and sprinkle it with pepper.
Then, add the crumbled blue cheese. Lastly, add the top of the bun and serve.