Color of the Month: Sangria — AR-15 Steel Castle Nut (Cerakote)

Lock in both performance and style with the Color of the Month: Sangria AR-15 Steel Castle Nut—a small but critical component that secures your buffer tube and stock assembly, now upgraded with a durable Cerakote finish.

Manufactured from steel for strength and long-term durability, this castle nut is designed to properly retain Mil-Spec buffer tubes under recoil and hard use. Finished in Cerakote® Sangria, it gains enhanced resistance to corrosion, wear, and chemicals while delivering a cohesive, color-matched look that ties perfectly into Sangria buffer tubes, end plates, and stocks.

About the color:
Sangria is a deep, wine-inspired red with a refined but aggressive edge. On a castle nut, the color adds a subtle but intentional accent at the rear of the rifle—perfect for builders who care about the details. This exclusive finish is available for a limited time as our Color of the Month and will rotate out with the next drop.

Why builders choose Color of the Month castle nuts

• Steel construction for secure buffer tube retention

• Custom Cerakote finish without extended lead times

• Small detail that completes a matched-color back end

Compatibility:
Designed for AR-15 Mil-Spec buffer tube assemblies. Always ensure proper staking during installation.

Key Features & Specs

• AR-15 steel castle nut

• Durable steel construction

• Cerakote® finish in Sangria (Color of the Month)

• Corrosion- and wear-resistant coating

• Designed for Mil-Spec buffer tube assemblies

• Ideal for custom and color-matched builds