Precision-machined mil-spec castle nut for AR-15 buffer tube assembly. Features smooth threading and non-sharp edges for reliable performance and safe handling.
Fits: AR-15
This steel castle nut is an essential component for any AR-15 platform rifle. Designed to mil-spec standards, it secures your buffer tube assembly with confidence and reliability.
The castle nut threads onto the buffer tube and is secured with a castle nut wrench and cotter pin. This component is critical for maintaining the integrity of your rifle's receiver extension assembly. Whether you're building a new rifle or maintaining an existing one, a quality mil-spec castle nut ensures your buffer tube stays secure under firing conditions.
This is a straightforward, no-nonsense component that does exactly what it's supposed to do—hold your buffer tube in place reliably.