Here is the USPSA Approved List for Production DIVISION:
(Class is how well you shoot, Division is what gun you shoot)
USPSA/NROI Production Gun List - USPSA - United States Practical Shooting Association
USPSA Production Division Approved Handguns
1006 (38 oz.), 1066 (38.5 oz.), 39 (26.5 oz.), 3913 (25 oz.), 3913L (25 oz.), 3913TSW (24.8 oz.), 3914 (25 oz.), 3953 (24.8 oz.), 3953STSW (24.8 oz.), 4006 (38.5 oz.), 4013TSW (37.8 oz.), 4043 (30 oz.), 4046 (37.8 oz.), 4053TSW (26.7 oz.), 410 (28.5 oz.), 439 (30 oz.), 4506 (40.5 oz.), 4513TSW (28.6 oz.), 4553TSW (28.6 oz.), 4566 (39.1 oz.), 457 (29 oz.), 4586 (39.1 oz.), 59 (27 oz.), 5904 (26.5 oz.), 5906 DA/SA (37.5 oz.), 5906 DA/SA 5 inch (40.9 oz.), 5946 (39.5 oz.), 659 (39.5 oz.), 669 (26 oz.), 6906 (26.5 oz.), 6946 (26.5 oz.), 908 (24 oz.), 910 (28 oz.), M&P 357 Sig Compact 3" (24.7 oz.), M&P 357Sig 4" (28.7 oz.), M&P 40 4" (27.5 oz.), M&P 40 Compact 3" (24.4 oz.), M&P 45 4" (27.9 oz.), M&P 45 Compact 3" (27.3 oz.), M&P 45 Full Size (28.9 oz.), M&P 9 Compact 3" (24.2 oz.), M&P 9L 5" 9mm (28.2 oz.), M&P 9mm 4" (27.2 oz.), M&P Pro series 5 9mm (29.2 oz.), M&P Pro series 5 .40 S&W (29.2 oz.), Sigma models Compact SW9V (26 oz.), SW40C (26 oz.), SW40F (26 oz.), SW40V (24.4 oz.), SW40VE (24.4 oz.), SW99 9, 40 & 45 (26 oz.), SW9C (25 oz.), SW9F (26 oz.), SW9M (18 oz.), SW9VE (24.7 oz.)
(Any DAO or DA/SA revolver with a barrel length of up to 8.5" is approved)