Smith & Wesson Model 610, Massachusetts Compliant, Double/Single Action, Metal Frame Revolver, N-Frame, 10MM, 4 Barrel, Stainless Steel, Matte Finish, Synthetic Grips, Adjustable Rear Sight, 6 Rounds, (3) 6-Shot Moon Clips 12463 The Smith & Wesson Model 610 10MM is available in the stainless steel large N-Frame. The model 610 is ideally suited for personal protection or handgun hunting with the popular 10MM auto cartridge.