Rinse the shrimp and pat dry with paper towels. Set aside.
Combine the melted butter, garlic, lime juice, parsley and cayenne pepper together. Stir to mix well. Add half of the butter-garlic-lime mixture into the shrimp, stir to coat well.
Fire up an outdoor grill and grill the shrimp for about 6 minutes, or until they are cooked. Brush the remaining butter mixture to the shrimp while grilling. Remove from grill and serve immediately.
Notes
You can make this shrimp on a grill pan or skillet, just heat up the grill pan and skillet and cook the shrimp until slight charred.