Desert Tech WLVRN Conversion Kit 5.56x45mm NATO 20in 10 Round Black. 56x45mm NATO 20in: Manufacturer: Desert Tech Color: Black Caliber: 5.56x45mm NATO Magazine Capacity: 10 Round Magazine Included: No Features of Desert Tech WLVRN Conversion Kit 5.56x45mm NATO 20in For converting WLVRN rifle to 20-inch 5.56N/223Rem 10rnd contains barrel bolt mag catch magwell (as needed) Package Contents: Desert Tech WLVRN Conversion Kit 5.56x45mm NATO 20in Desert Tech WLV-CK-B2010: WLVRN Conversion Kit 5.56x45mm NATO 20in 10 Round Black