Complete 20ga forenr assy:
https://m.ebay.com/itm/Western-Arms-Double-Barrel-20ga-Wood-Forend-and-Forend-Iron-Assembly/332599006610?hash=item4d70721592:g:dx0AAOSw4ltauVjD


16ga iron:
https://m.ebay.com/itm/Western-Arms-Ithaca-Used-16-Ga-Forend-Iron-Complete-W-Latch-Assembly-125/253575802979?hash=item3b0a4bb063:g:l~wAAOSwPsBa24U~

John