Extra-wide steel castle nut with nitride finish for AR15 buffer tubes. Engineered for a stronger, more durable hold on mil-spec and commercial tubes.
Fits: AR15
The castle nut is a critical component of your AR15's buffer tube assembly, and this heavy-duty offering from Guntec raises the bar for reliability and durability.
A quality castle nut prevents your buffer tube from loosening during shooting, which can affect your rifle's reliability and performance. The wider profile of this nut distributes clamping force more effectively than standard designs, reducing the risk of slippage and ensuring your stock stays exactly where you set it.
Whether you're building a new AR15 or upgrading an existing rifle, this castle nut delivers the security and longevity serious shooters demand.