Looks great and does what it’s supposed to! - FAB Defense Handguard Accessory Rail System For Mossberg 500/590

Easy to install and gives you plenty of options for attachments like grips, lights and slings! It’s a little loose but that’s actually the gun not the slide. It’s not noticeable with the factory slide tube but once you add this part along with a vertical grip and a light the movement is more noticeable. It’s a good trade off for the flexibility to add accessories.