ZRODelta Mil-Spec Castle Nut Black Small. . Developed using some of the most extremely sturdy and dependable resources available these AR15 Lower Parts via ZRODelta will provide you with an item which will give a great deal of reliability. ZRODelta has been making top quality merchandise for a very long time and the ZRODelta Mil-Spec Castle Nut is their manner of showing you how much they care. Right here at OpticsPlanet we make it our responsibility to purchase the most suitable product for all your requirements and presenting the ZRODelta Mil-Spec Castle Nut is one thing that we're pleased to offer. Specifications for ZRODelta Mil-Spec Castle Nut: Manufacturer: ZRODelta Color: Black Package Contents: ZRODelta Mil-Spec Castle Nut ZRODelta 7062-0003-1370: Mil-Spec Castle Nut Black Small