DoubleStar CAR Receiver End Plate Black. Allows for hook sling attachment. Specifications for DoubleStar CAR Receiver End Plate: Manufacturer: DoubleStar Color: Black Fabric/Material: Steel Gun Make: AR Platform Gun Model: AR-15 Condition: New Features of Doublestar CAR Receiver End Plate Type: Standard Package Contents: Doublestar CAR Receiver End Plate What firearm models does the manufacturer say DoubleStar CAR Receiver End Plate is compatible with? The manufacturer suggests that DoubleStar CAR Receiver End Plate is compatible with AR-15DoubleStar AR345: CAR Receiver End Plate Black