Introducing XS sight systems magazine tube swage - the innovative solution for installing a magazine tube extension on your 870/1100/11-87 series shotguns. In the past, the process was straightforward, but with the new detent style magazine spring and mag cap retention system, it has become more challenging. However, our magazine tube swage changes the game by allowing you to effortlessly remove these detents without the need for grinding, preserving the sleek appearance and integrity of your shotgun's Mag tube. Say goodbye to unsightly modifications and the risk of dirt and debris entering your Mag tube with XS sight systems magazine tube swage. Upgrade your shotgun effortlessly and maintain its impeccable performance.