SP101 Revolver
Calibers: 327 Fed, 32 Mag, 9mm, 38 Spl, 357 Mag
Beginning Serial Number: Years of Production:
570-00001 1989
570-38900 1990
570-59251 1991
570-89156 1992
571-10044 1993
571-61034 1994
571-94054 1995
572-28006 1996
572-44498 1997
572-61001 1998
572-75429 1999
572-85141 2000
572-96421 2001
573-09909 2002
573-25857 2003
573-28019 2004
573-39006 2005
573-48693 2006
573-59868 2007
573-72039 2008
573-94733 2009
574-29035 2010
574-57595 2011
574-85448 2012
575-10044 2013
575-40263 2014
575-78119 2015

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 necessarily 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, firearms may be stored for a length of time before they are shipped.

For details on your specific serial number you may contact our Service Department: 336-949-5200

For serial numbers manufactured prior to our electronic records, or for an official letter confirming the details on your firearm please download and mail in the Request for Letter of Authenticity form.