Elevate your rifle's performance with the NcSTAR VG137 Complete Mil-Spec Buffer Tube Extension Kit. Crafted from aircraft-grade aluminum, this durable assembly ensures reliability and precision in every shot. This well-engineered kit includes everything you need for a smooth operation, fitting perfectly on all Mil-Spec lower receivers. Designed for both durability and adaptability, it enhances your firearm's precision and ergonomics. 6 Position Buffer Tube Buffer Spring (Colors may Vary) Recoil Buffer (Colors may Vary) Castle Nut End Plate Optimize your shooting experience with NcSTAR's robust buffer tube kit today.