Cooey Model 840 Serial Number Lookup

The is a classic Canadian bolt-action shotgun, produced by the H.W. Cooey Machine & Arms Company in Winchester, Ontario (later acquired by Winchester). Because these were mass-produced utility firearms over several decades, detailed factory records are scarce.

If your barrel and receiver are blank, don't worry—your gun isn't "missing" its ID; it simply never had one. Identifying the Era of Your Cooey 840 Cooey Model 840 Serial Number Lookup