It should be equivalent to a Harrington and Richardson model 120. Parts should be available from Numrich at the related link posted on the right side of this page. It absolutely is NOT a Harrington & Richardson product. The gun was manufactured by High Standard. The part is called either the carrier assembly or the cartridge lifter assembly. Numrich Gunparts and Proofhouse.com both cross-reference this Sears number to the H&R 120. Numrich has the carrier for for the H&R 120 for $18.20 and if you order it based on their cross-reference list, I'm sure you can get a refund if it is not the correct part..
There is a ammo clip for a J C Higgins shotgun model 58324 16 gauge. You can buy it as a replacement part.
Try e-gunparts.com
A muzzle loading, black powder shotgun made by Scott & Co.
Odd question... It's a auto-loading shotgun made from 1905-1947, actually it is the FIRST auto-loading shotgun produced in the U.S.A. !
Which model are you asking about?
JC Higgins Model 20 Shotgun does not have a serial number. Guns were not required to have a serial number before 1938
Early 1950's
J.C. Higgins Model number shotgun, normally 20-12
J.C. Higgins is an old brand name used by Sears.
Which one?
$150.
value of a jc higgins 101-40 shotgun