In 1994, production of the SAA resumed with the increase in popularity of "Cowboy Action Shooting" matches. These models are known either as "Late Third Generation" or sometimes Fourth Generation. They have the original style removable/replaceable cylinder bushing. The serial number for this series started at S02001A and continued to use the "S" prefix and "A" suffix to 2009. Colt currently offers the Single Action Army in one of two finishes: either an all-nickel, or blued with color case-hardened frame; in the traditional three barrel lengths: ", " and "; and eight chamberings: .32-20, .38-40, .44-40, .38 Special, .357 Magnum, .44 Special, .45 Colt, or .45 ACP; a total of 42 variations.