Complete your AR-15 lower receiver build with the One Horse AR-15 Buffer Tube Kit featuring a 6-position carbine buffer and Mil-Spec components. This kit includes everything needed for a reliable adjustable stock setup.One Horse AR-15 Buffer Tube Kit with Carbine Buffer7075-T6 aluminum tube - CNC-machined for precisionHardcoat anodized finish for durability and corrosion resistanceComplete kit includes carbine buffer Mil-Spec recoil spring end plate and castle nut6-position adjustable designMil-Spec buffer tube compatibilityMade in U.S.A.This dependable buffer tube kit provides the foundation for a solid adjustable stock system engineered for long-term reliability and proper AR-15 function.