Surefire Socom556-SB Fast Attach End Mount Sound Suppressor 5.56mm 6.2 Inches Black Finish - All NFA Rules Apply Out of stock. Check back later... $1,399.00 MSRP Price: $1,224.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 556-SB-BKManufacturer: SurefireModel: 556-SB-BKCaliber: 223 RemCategory: NFASilencerGunsStock: 0 This item may be shipped to an FFL near you! The item will be held at our location until we have received a valid copy of your dealer's license.