Metal Detector Bag & Carry Case: Metal Detector Bags and Carry Cases often will come with your detector, but, sometimes you need more than one. Yes, you can buy them separately. They are quite handy. I myself have put a metal detector bag to the extreme test. I used to sling the metal detector bag over my should and ride the motorcycle to the park. This may not be the safest way to transport your metal detector, but, there are times when the metal detector bag or metal detector carry case is a true life saver.