Cooey Model 840 Serial Number Lookup Jun 2026

You cannot plug a Cooey serial number into a website to get a date.

The predecessor to the 840 was the Cooey Model 84.

Because there is no centralized database, "looking up" a serial number for a specific year is generally not possible. How to Estimate Your Manufacture Date Cooey Model 840 Serial Number Lookup

Occasionally, numbers were handwritten or stamped here.

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"It's a Cooey," Elias shouted up. "Model 840. Canadian made. Probably mid-century."

The Cooey Model 840 is a staple of Canadian firearms history, representing a break-action, single-shot shotgun built for reliability and affordability. Produced from 1967 to 1979 under Winchester-Western (Canada) Limited after they acquired the H.W. Cooey Machine & Arms Company, the 840 is the successor to the earlier Model 84. How to Estimate Your Manufacture Date Occasionally, numbers

The serial number can be stamped in multiple locations:

Markings moved from the receiver to the barrel; stocks switched to "plain" hardwood (birch or maple) with no checkering.

Finding the exact date of manufacture for a Cooey shotgun, however, is a common challenge. , particularly for the Model 840. 1. Where to Find the Serial Number (and Markings)