Increase the capacity of your standard Remington 870 shotgun with our DIY +2 kit. XS Sights extension kit is built to be easily installable, lightweight, and offer additional tactical upgrades to your taste. The one-piece design is machined from 6061 aluminum and hard coat anodized. The aluminum reduces the weight compared to traditional steel tubes. The tip of the extension has wrench flats to allow users to tighten the tube securely. Measuring 6 inches, the extension will not extend past the barrel on a traditional four round capacity shotgun tube.