Mix together the garlic, chipotle peppers, lemon juice, olive oil, paprika, cilantro, kosher salt, black pepper, red pepper flakes, and cayenne pepper in a bowl. Stir in the shrimp, and mix well to thoroughly coat. Marinate for 30 minutes in refrigerator.

Preheat an outdoor grill for medium-high heat, and lightly oil the grate.

Remove the shrimp from the marinade, and discard excess marinade. Thread about 5 shrimp per skewer, and grill on the preheated grill until the shrimp turn pink and opaque in the center, about 2 minutes per side.