Sons of Liberty Gun Works (SOLGW) Mil-Spec Castle Nut

Keep your AR-15 build rock-solid with the Sons of Liberty Gun Works (SOLGW) Castle Nut. Engineered to mil-spec standards, this castle nut is designed to securely lock your buffer tube in place, ensuring reliable performance whether you’re building a competition rifle, a hunting rig, or a home defense firearm. SOLGW is known throughout the firearms community for producing quality parts that meet or exceed military specifications, and this castle nut is no exception. Compatible with most mil-spec AR-15 and AR-platform lower receivers, it’s an essential component for any new build or parts replacement project. Whether you’re a seasoned builder or just getting started, having the right hardware matters — and SOLGW delivers. Order online today through Deep Roots Rifle Co and enjoy fast shipping nationwide, or stop by our local gun store in Eustis, Florida, where our knowledgeable staff is ready to help you find everything you need for your next build.