Separate slider rolls and lay tops and bottoms, cut side up, on rimmed sheet pan. Place pan in oven and lightly toast buns, 3 - 4 minutes. Remove from oven, transfer bun tops to a plate and set aside.
Place chicken in microwave safe bowl and heat for 1 - 2 minutes until chicken is warmed.
Add barbecue sauce, reserving 1/2 cup for later, and pickle juice to the chicken and stir to coat.
Return chicken mixture to microwave for 2 - 3 minutes until hot.
On baking sheet, place 1/3 cup chicken mixture on each bottom roll. Top with 2 teaspoons reserved sauce and half slice of cheese. Replace top half of slider roll.
Return pan to oven for 2 - 3 minutes just until cheese starts to melt. Remove pan from oven
Serve warm with a pickle slice and fresh coleslaw.