Check the listing for details. Ruger SR-40C Case And Instructions. Condition: Used. Listed at 18.99 USD. The Ruger SR-40C Case and Instructions is a product that likely includes a protective case and instructions for the Ruger SR-40C model device. The case provides a secure storage solution to keep the device safe from damage, while the instructions offer guidance on how to properly use and operate the Ruger SR-40C system. This product is essential for gun enthusiasts who want to ensure the longevity and optimal performance of their Ruger.