New for 2019 is our Builder Series Aluminum Castle Nut. The Builder Series will offer a vast number of 2A Armament components that have been made with the AR builder in mind. Not only does the Builder Series offer extremely high quality products, but it also offers very competitive pricing. This Builder Series Aluminum Castle nut offers weight savings over a traditional steel mil spec castle nut. It features unique machine work to enhance the appearance as well as reduce overall weight. It is light but strong enough to keep your buffer tube secure. It is anodized with the same method as all of our components in order to keep the coloring consistent. This part will allow you to lower the weight and increase the aesthetics of any build.
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