ERGO Castle Nut for AR-15 Black

ERGO brings this receiver extension castle nut for M4 style receiver extension tubes.

Specifications:

• Standard Mil-Spec CAR castle nut
• Made from steel and coated black

By purchasing ERGO Castle Nut for AR-15 Black from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality