 The SP-101 has barrel lengths of 2" and 3".The .38 Special, .357 Magnum, and 9×19mm Parabellum models hold 5-shots, while the .327 Federal Magnum and .32 H&R Magnum models hold 6-shots, and .22 LR model holds 8-shots.The Smith & Wesson Model 500 Emergency Survival is a large frame, 5-shot, 2.75" barrel, .500 S&W Magnum, double action revolver with blaze orange Hogue grips.