The KAK Industry AR-15 Carbine Buffer Tube Kit is designed for responsible gun owners looking to enhance their AR-15 platform. This comprehensive kit includes a buffer tube, carbine buffer, castle nut, end plate, and a chrome silicon spring, ensuring durability and reliability in performance. Constructed from high-quality 7075 aluminum and finished with a black military hard coat anodization, this buffer tube kit is built to withstand the rigors of tactical use. It features six adjustable positions for optimal customization and accepts standard AR-15 buffers and springs for seamless compatibility. Intended Use: Ideal for AR-15 builds and upgrades. Key Benefits: Enhances the performance and customization of your AR-15 rifle. Key Features: - Includes buffer tube, carbine buffer, castle nut, end plate, and spring - Six adjustable positions for customized length of pull - Durable 7075 aluminum construction - Black military hard coat anodized finish Summary: Upgrade your AR-15 with the KAK Industry AR-15 Carbine Buffer Tube Kit, built for reliable performance and designed to provide enhanced versatility for any shooting application.