TAPCO Buffer Tube Kit – Take your AR-15 customization to the next level with the TAPCO Buffer Tube Kit a comprehensive package designed to enhance the functionality and versatility of your rifle. This kit includes everything needed for a complete buffer tube assembly including a 6-position buffer tube carbine buffer buffer spring castle nut and TAPCO Endplate/Sling adapter. Crafted with precision and durability in mind each component is engineered to Mil-Spec standards for reliable performance in any situation. The 6-position buffer tube allows for adjustable length-of-pull while the carbine buffer and buffer spring ensure smooth and consistent cycling. The castle nut ensures secure installation while the TAPCO Endplate/Sling adapter adds sling attachment options for added convenience.