Serial Number Lookup
Enter a S&W K-frame serial number to identify the production year, model, and caliber.
This tool provides collector reference estimates only. Serial number tables are approximate. A factory letter is the only authoritative source for production date, model, caliber, barrel length, and shipping destination.
Reference Tables
Serial number tables are approximate production references compiled from collector sources including the Smith & Wesson Forum, Royal Canadian Mounted Police records, Smith & Wesson historical publications, and collector guides. These ranges are estimates. Production records were not always maintained sequentially. Overlapping ranges, out-of-sequence shipping, and special orders can place a serial number outside the expected date range. A factory letter from Smith & Wesson is the only authoritative source for a specific firearm's production history.
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Unit Tests
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