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Tapco TAP22058 : 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.