P-Series - P90 Manual Safety Model
Caliber: .45 ACP
Beginning Serial Number: Years of Production:
660-00001 1991
660-27550 1992
660-52347 1993
660-85009 1994
661-09482 1995
661-36515 1996
661-46965 1997
661-68542 1998
661-92011 1999
662-06709 2000
662-24097 2001
662-36744 2002
*662-45757 and 663-51676 2003
*663-53761 2004
*663-58465 2005
*663-75075 2006
*663-80464 2007
*663-85383 2008
*663-88454 2009
*663-92911 2010

* P90 Serial numbers rollmarked with P97 Pistols beginning in 2003

The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.

Ruger does not produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers. And in some cases, models may be stored for a length of time before they are shipped.

For details on your specific serial number you may contact our Service Departments:
• Rifles, Shotguns, Revolvers: 603-865-2442
• Pistols: 928-541-8892