- Out of stock
 - Inventory on the way
 
    This ATI Castle Nut is a high-quality, precision-engineered replacement part for Bolt Action Chassis Buffer Tubes.
The castle nut is made in the United States from high-quality, e-coated steel, giving it long-lasting durability and wear resistance.
- Fits both Mil-Spec and Commercial carbine buffer tubes
 
Use collapsible tabs for more detailed information that will help customers make a purchasing decision.
Ex: Shipping and return policies, size guides, and other common questions.