Cut up the onion and peppers in large chunks approximately 1 inch squares or a little larger.
Cut the bacon slices into thirds and slightly cook the bacon until it is softened but not crispy.
(this could be done in the microwave) Wrap the shrimp in the bacon slices and assemble the Kabobs on the metal skewers starting with bacon wrapped shrimp, a chunk of red pepper, onion, mushroom cap, and green pepper then another bacon wrapped shrimp.
fill the skewer.
Place the Skewers on a preheated grill with slightly greased foil.
As you are cooking the skewers, baste with the BBQ sauce on each side for approximately 7 to 10 minutes (depending on the temperature of your grill.) Enjoy!