Yes, it is possible to install hard saddlebags on a Harley Davidson Sportster. While the Sportster models generally do not come with factory-installed hard saddlebags, many riders choose to customize their motorcycles by adding aftermarket saddlebags. There are various manufacturers that offer saddlebag kits specifically designed for Sportster models. These kits typically include the necessary mounting hardware and instructions for installation. It's worth noting that the specific compatibility and fitment may vary depending on the exact Sportster model and the saddlebag kit being used, so it's recommended to consult with a reputable dealer or manufacturer to ensure proper fit and compatibility before making any modifications to your motorcycle.