Wilson Combat Remington 870 2-Shot Extension 12Ga, Extension Tube, Right Hand SGET-RH-2 Upgrade your shotgun with the Wilson Combat 2 shot 12 gauge right-hand extension tube for enhanced performance and accuracy. This rugged and reliable extension tube features a parkerized finish" as well as an extra power magazine spring to ensure smooth operation. Plus" with its 6-round capacity" you get the power you need in a lightweight package. Whether you're hitting the range or hitting the trails" this extension tube is ready for anything.