The ATI AR-15 Buffer Tube Package features a 6-position buffer tube with hard-coat anodized, 6061-T6 aluminum construction and a MIL-SPEC 1.19" thread diameter and 1.15" tube diameter. Includes an AR-15 recoil plug, a buffer spring and a steel, E-coated castle nut and locking ring. ATI (Advanced Technology International) ATI AR-15 Buffer Tube Package - Shooting Supplies And Accessories at Academy Sports
