Rock River CAR A4 5.56x45mm NATO, 16" Barrel, Free Float Quad Rail, Standard BCG, RRA Operator CAR Stock, Flip Front Sight Gas Block, 2 Stage Trigger, Winter Trigger Guard, Hogue Grip Out of stock. Check back later... $1,128.00 MSRP Price: $1,095.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 1850XManufacturer: Rock River ArmsModel: 1850XCaliber: 5.56x45mm NATOCategory: Long gunModern Sporting RifleRifleGunsStock: 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.