Ruger Revolver Lookup Tool
Ruger Revolver Serial Number Lookup
The Ruger Revolver Serial Number Lookup helps identify the approximate shipment year of Security Six, Service Six, Speed Six, GP100 and Blackhawk revolvers. Enter the serial number exactly as stamped on the frame, including the hyphen and any leading zeroes, then use the supporting guide below to understand the result and its limitations.
For production history, model identification, collector notes, and complete charts, continue to the Ruger Revolver Serial Number Hub.

Enter a Ruger Serial Number
Note: Ruger does not always ship firearms in strict serial order. Dates are approximate and based on factory serial number charts. For absolute confirmation, contact Ruger Customer Service or request a factory letter.
How to Use the Ruger Serial Number Lookup
Start by selecting the closest matching Ruger revolver family. Copy the serial number exactly as it appears on the firearm. Ruger serials commonly include a numerical prefix, a hyphen, and the remaining digits. A missing hyphen, omitted leading zero, or incorrect model selection can produce an inaccurate result or no match.
How Ruger Serial Numbers Work
Ruger serial-number history charts generally identify the approximate first serial number shipped for a given year. That means a result should be read as a shipment-year estimate, not as an exact manufacturing date. A revolver may have been assembled, inspected, warehoused, or shipped at different times.
Ruger has also explained that firearms were not always produced or shipped in perfect numerical order. Blocks of serial numbers can appear out of sequence, and some records—especially older records—may not be available through an electronic lookup. For those reasons, this page uses careful wording such as “approximate year” and “first year shipped.”
Shipment year versus manufacture year
Collectors often use “manufacture year” as shorthand, but Ruger’s historical tables are primarily shipment references. When documenting a collection, estate, insurance schedule, or sales description, the safest wording is “approximately shipped in” followed by the year shown by the serial range.
What the prefix means
The digits before the hyphen are part of the serial number and can help distinguish production eras or product families. Do not discard them. Two Ruger firearms with similar trailing digits can belong to entirely different serial ranges when their prefixes differ.
Models Covered by This Lookup
The interactive tool currently focuses on three major Ruger revolver families. The related collector guides provide deeper identification help, variant history, and buying or inspection notes.
| Model family | What this page provides | Related collector guide |
|---|---|---|
| Security Six family | Approximate shipment-year lookup and a visible 1972–1988 reference table for Security Six, Service Six, and Speed Six revolvers. | Security Six deep dive |
| GP100 | Interactive serial lookup for the GP100 family, with context on entering the prefix and interpreting an approximate result. | GP100 buyer’s guide |
| Blackhawk | Interactive lookup for Blackhawk serial ranges, supported by a separate guide to Flat-Top, Three-Screw, and New Model identification. | Blackhawk identification guide |
For Single-Six research, use the Ruger Single-Six reference. For the broader Ruger revolver collection, visit the Ruger Revolver Serial Number Hub.
Ruger Serial Number Lookup Examples
In the visible Security Six table below, 150-64961 is the beginning serial listed for 1974. A revolver at or above that number—but below the next listed threshold—would generally be described as approximately shipped in 1974.
The table lists 151-76180 as the beginning serial for 1976. Preserve the “151” prefix and the hyphen when entering the number.
These examples show how threshold tables work. They do not prove the exact day of manufacture, assembly, or shipment for a specific firearm.
Where to Find the Serial Number
On Ruger revolvers, the serial number is stamped on the frame. Its exact location can vary by model and production period, so inspect the frame carefully under good lighting. Use the number stamped into the firearm itself rather than relying only on a handwritten label, seller description, or remembered number.
Enter every digit exactly, including the prefix, hyphen, and any leading zeroes. Do not use a model number, catalog number, patent marking, or caliber marking as the serial number.
Common Reasons a Ruger Serial Number Does Not Match
The model family is wrong
A serial range associated with a Blackhawk will not necessarily resolve correctly when GP100 is selected. Confirm the revolver family before assuming the serial is absent.
The prefix or hyphen was omitted
The prefix is essential. Re-enter the complete serial exactly as stamped.
The firearm falls outside the tool’s current coverage
This page is intentionally focused on selected revolver families. Other Ruger firearms may require the official Ruger lookup or one of the site’s dedicated collector references.
The number falls near a yearly boundary
A threshold table identifies the first listed serial for a year. A firearm near a transition should be described cautiously, particularly because Ruger did not always ship in strict serial order.
The record is not available electronically
Older records may be incomplete in electronic systems. A factory inquiry or letter may be necessary when exact documentation matters.
How to Verify an Important Result
Use this page for collector research and an approximate date. For an estate inventory, insurance documentation, high-value purchase, or provenance claim, verify the result through Ruger’s official serial-number lookup or Customer Service. An official factory letter is the stronger form of documentation when one is available.
Check the official Ruger serial-number lookup. The manufacturer’s service is the final authority for records it can retrieve.
Reference: Ruger Security Six Serial Number Ranges
| Beginning serial | Approx. first year shipped |
|---|---|
| 150-00001 | 1972 |
| 150-35383 | 1973 |
| 150-64961 | 1974 |
| 151-21780 | 1975 |
| 151-76180 | 1976 |
| 152-61012 | 1977 |
| 153-60425 | 1978 |
| 154-63332 | 1979 |
| 155-76844 | 1980 |
| 156-94383 | 1981 |
| 158-12020 | 1982 |
| 159-45126 | 1983 |
| 159-81307 | 1984 |
| 160-58768 | 1985 |
| 161-80082 | 1986 |
| 161-84833 | 1987 |
| 162-39887 | 1988 |
Ruger Serial Number Lookup FAQ
How accurate is a Ruger serial number year?
It is best treated as an approximate shipment year. Ruger’s historical ranges identify beginning serial numbers by year, and firearms were not always produced or shipped in strict numerical order.
Why does the page say shipment year instead of manufacture date?
The historical charts are shipment references. The assembly date and shipment date may not be identical, so “approximately shipped in” is the more precise collector description.
Should I include the hyphen and leading zeroes?
Yes. Enter the serial number exactly as stamped on the frame, including the prefix, hyphen, and any leading zeroes.
Why is my Ruger serial number not found?
The wrong model may be selected, part of the serial may be missing, the firearm may fall outside this tool’s covered models, or the record may not be available electronically.
Can the lookup identify every Ruger revolver?
No. The interactive tool currently concentrates on the Security Six family, GP100, and Blackhawk. Other Ruger models are covered by linked guides or the official manufacturer lookup.
Can a serial number establish collector value?
A serial number can help establish an approximate production period, but value also depends on exact model, variation, condition, originality, finish, barrel length, grips, box, paperwork, and market demand.
Sources and Research Notes
- Ruger official serial-number lookup and historical serial references.
- Ruger factory serial-range language noting that yearly numbers are approximate shipment references and may not run in strict numerical order.
- Gun Collectors Club model guides linked throughout this page for identification and variant context.
This page is an independent collector reference and is not affiliated with or endorsed by Sturm, Ruger & Co., Inc.