The Cooey Model 840 was produced from 1948 to 1970, with an estimated 16,000 units manufactured during this period. The serial number range for the Model 840 is as follows:
Unlike many budget single-shots, the 840 is known for its strong ejection, snapping spent shells well clear of the shooter. How to Value a Cooey 840 Without a Serial Number Cooey Model 840 Serial Number Lookup
The Cooey name (pronounced “KOO-ee”) was synonymous with affordable, rugged firearms for decades. The Model 840 was produced by of Cobourg, Ontario, and later by Winchester after their acquisition of Cooey in 1961. The 840 series includes bolt-action shotguns and rifles—often in .22 calibre or 12/20 gauge. The Cooey Model 840 was produced from 1948