In 1883, John Moses Browning began to work with Winchester and famously designed many of the most famous Winchester rifles such as 1886, 1892, 1894, 1895, 1890 and various shotguns. Winchester has led the way in firearm innovation, and many popular models have played significant roles in the history of America and the world. The Winchester Model 121 is a single-shot bolt-action.22 caliber rimfire rifle that was produced from 1967 to 1973 by the Winchester Repeating Arms Company.The 121 can fire.22 Short,.22 Long, or.22 Long Rifle cartridges from its 20¾' barrel. The barrel rifling is 1 turn in 16 inches with a right-hand twist. The bolt is a controlled-round feed design (like that of the Winchester Model 70.

1. Winchester Model 121 User Manual Online
2. Winchester Model 121 User Manual Download
3. Winchester Model 121 Bolt Assembly

Below is the download link for a special resource for dating Winchester firearms. These pages were scanned from documents compiled over the years by the customer service department of Winchester Repeating Arms. None of the page scans are of original documents but are simply transcribed information typed into a word processing program. In general, this information is the same that you would get if you called our customer service department and asked them for the information. They use these documents as a reference and the documents should be limited to that use.

Click the image below to download the PDF document containing the serial number date-range information on many Winchester firearms. You will need the Adobe Reader program to open this file. Adobe Reader is available free from Adobe.

THE HISTORY OF WINCHESTER HISTORIC SERIAL NUMBER RECORDS.
There are many “legends” about why the historic serial number records for Winchester rifles and shotguns are not complete or why they are not always verifiable. A few reasons cited are:

1. A fire at the factory
2. Inadvertent destruction (during office cleaning)
3. Records simply lost in filing
4. Records misplaced between ownership transitions
5. Documents borrowed but not returned

There is probably some kernel of truth to all of them. But the fact remains; there is no original, single, totally accurate database of serial numbers from 1866 forward that we are aware of. But perhaps these pages can help you somewhat in your research.

Please keep the following points in mind as you explore these pages:

• Many of the Winchester brand firearms produced over the years are included, but not all. If your firearm is not listed, we probably do not have any additional information.
• Before the 1990s the Winchester Repeating Arms firearms brand transferred ownership several times. Any information before the 1990s is always difficult to verify.
• In general, only serial number ranges with an approximate year are provided in this document. There is no other detail beyond this that we can provide.
• Since this information was provided through old documents (both official and otherwise), no representation is made that all serial number and year combinations are totally accurate.
• In some exceptional cases, a more detailed, accurate determination can be made by calling the Winchester Repeating Arms Historian at the Morgan, Utah office. 800-333-3288. Ask for the Winchester Repeating Arms Historian.
• For any other questions: 800.333.3288 or 801.876.2711. For Parts and Service call: 800.322.4626
• For questions related to Ammunition don’t call us. Contact Winchester Ammunition directly.
• No attempt has been made to determine the value of any guns listed.
• The Cody Firearms Museum has more information on Winchesters produced before 1900.
• This late historian George Madis compiled extensive histories on Winchester firearms. www.georgemadis.com

There are other outside resources – including the Cody Firearm Museum -- which can be excellent for determining date of manufacture and value: Click here to go to our gun values resource links.

Click below to download a PDF overview of Cody Museum serial number resources.

(Please remember that this information is a compilation over time -- collected from secondhand information. No confidentail records were used. We reserve the right to make changes at any time and make no claims as to accuracy. No attempt has been made to determine the value of any Winchester products.)

© Winchester Repeating Arms, 2012, 2015, R. Stitt

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66 pages, about 11' x 8', glossy soft-cover in full color. New re-print restored and digitally enhanced from a nice original. Printed on high quality 20# 97 bright acid free paper. Fully Illustrated.

Winchester Model 121 User Manual Online

Also see:

Contents - Index:

Winchester Model 121 User Manual Download

• Pages: 66

Winchester Model 121 Bolt Assembly

• Winchester Parts Catalog 1967 January
• New Haven, Connecticut
• Winchester Model 12 Parts in Flat View
• Winchester Model 12 Featherweight Parts Flat View
• Winchester Model 21 DB Single Trig Parts Flat View
• Winchester Model 37 SB Single Shot Parts in Flat View
• Winchester Model 42 .410 Bore Parts in Flat View
• Winchester Model 50 Parts in Flat View
• Winchester Model 59 Parts in Flat View
• Winchester Model 52D Target and Sporting Parts Flat View
• Winchester Model 52C Parts in Flat View
• Winchester Model 55 Single Shot Parts in Flat View
• Winchester Model 61 Slide and Magnum Parts in Flat View
• Winchester Model 66 Centennial Flat View
• Winchester Model 67 Parts in Flat View
• Winchester Model 69A Parts in Flat View
• Winchester Model 70 and Featherweight Parts in Flat View
• Winchester Model 70 deLuxe Parts in Flat View
• Winchester Model 77 .22 Automatic Parts in Flat View
• Winchester Model 94 and new Model 94 Lever Action Parts in Flat View
• Winchester Model 94 Classic Flat View
• Winchester Model 88 Parts in Flat View
• Winchester Model 100 Parts in Flat View
• Winchester Model 101 Over Under Parts in Flat View
• Winchester Model 121 single and Youth Parts in Flat View
• Winchester Model 121 Single Shot Parts in Flat View
• Winchester Model 131 Short, Long Long Rifle Parts in Flat View
• Winchester Model 135 .22 Magazine Parts in Flat View
• Winchester Model 145 Magnum short or long Parts in Flat View
• Winchester Model 190 Lever Action Parts in Flat View
• Winchester Model 250, 255, 270, 275 Parts in Flat View
• Winchester Model 290 Parts in Flat View
• Winchester Model 670 Parts in Flat View
• Winchester Model 1200 Parts in Flat View
• Winchester Model 1400 Parts in Flat View
• Winchester Sights and Sight Parts
• Winchester Sling Attachment