The Parts You Need To Rebuild An Obsolete Tube
For most of the older .22's that no longer have a factory replacement magazine tube, this kit provides the parts needed to custom-make a magazine to fit. All tube blanks have a rolled crimp on one end only. Kit No. 1: .350" O.D. tube, 17½" (44.4cm) long. 23½" (59.6cm) spring, with follower, plug, and cross pin. For some Winchesters, both older and new, plus many others. Will not fit tubular magazines with a plastic follower such as the Marlin model 60 or derivatives of it.
Big Book Catalog, Issue:70, Page:176
SPEC: Brass tube, steel follower and spring.