Enhance your firearm's performance with the Presma Aluminum Castle Nut, specifically designed for .223/5.56/.308 buffer tube receiver end plates in a stunning gold finish. Crafted from high-grade aluminum, this castle nut ensures a secure and durable fit, elevating your weapon's stability while adding a touch of elegance to your setup. Built from durable aluminum for long-lasting performance Precision-engineered for a secure fit on buffer tube receiver end plates Attractive gold coloration for enhanced aesthetics Compatible with .223/5.56/.308 firearms Upgrade your firearm with the Presma Aluminum Castle Nut and enjoy unmatched reliability and style.