The Lee Decapper and Base is the perfect tool for quickly and efficiently removing military crimp. This decapper and base works by driving the primer out of the case with a hammer. Not only is this system fast and efficient but because it is made from steel you are guaranteed year after year of durable performance. If you are looking for an efficient tool to remove military crimp look no further than the Lee Decapper and Base. This system comes in a variety of sizes to accommodate all of the most popular calibers so you can choose the one that is right for you.