Cooey Model 840 Serial Number Lookup [TRUSTED]

Things get interesting in late 1968. New gun laws required serialization. Cooey (then owned by Winchester-Western) reluctantly complied. On these late-production Model 840s, you’ll find a serial number—usually on the left side of the receiver or the trigger guard.

But here’s the catch: Cooey’s serial numbers were chaotic. There is no known, comprehensive factory ledger. They often used batch codes, inspector stamps, or Winchester-era numbering systems that overlap confusingly with the Cooey Model 60 and 600.

For example, a typical late 840 serial might look like A12345. What does the "A" mean? Possibly a production shift, a subcontractor batch, or a Tuesday morning run in Cobourg. Nobody knows for sure. Cooey Model 840 Serial Number Lookup

The Cooey 840 evolved its feed ramp design.

If your Cooey 840 does have a serial number, here’s where you can try: Things get interesting in late 1968

The Cooey name (pronounced “KOO-ee”) was synonymous with affordable, rugged firearms for decades. The Model 840 was produced by Cooey Machine & Arms Co. 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.

For generations of Canadian shooters, hunters, and trappers, the name "Cooey" represents rugged reliability and affordability. Among the most iconic of these firearms is the Cooey Model 840, a bolt-action shotgun that has served as a first gun for countless outdoorsmen. Whether you inherited one from your grandfather or picked one up at a rural auction, understanding its history often starts with one question: How do I perform a Cooey Model 840 serial number lookup? On these late-production Model 840s, you’ll find a

Unlike modern firearms manufactured by mega-corporations like Winchester or Remington, dating a Cooey is not a straightforward, database-driven process. This article will explain everything you need to know about the serial numbering system (or lack thereof), how to identify your specific model variation, and where to find the hidden markings on your barrel and receiver.