The RM66 features Rossi's prized double action trigger and an unbelievably crisp single action trigger pull. To allow you to take the best advantage of those triggers the RM66's six-inch barrel pairs with a red ramp front sight and a fully adjustable rear sight. This allows you to zero the RM66 for your ammo of choice whether it's 158 grain .357 Magnum or 130 grain .38 Special.The RM66 has 6 shots of .357 Magnum on tap in its steel cylinder. The full underlug barrel adds additional weight which helps manage magnum recoil. Further aiding recoil reduction is the wrap-around rubber grip cushioning your hand during firing. There are already a considerable number of accessories available for the RM66 as it fits common holsters and speed loaders for similar sized medium frame revolvers.Specifications: Caliber: 357 MAG / 38 SPECIAL +P Capacity: 6 Rounds Front Sight: Removable Serrated Blade Rear Sight: Fully Adjustable Cylinders Included: 1 Action Type: DA/SA Frame Size: MEDIUM Barrel Length: 6.00 In. Overall Length: 11.14 In. Overall Height: 5.47 In. Overall Width: 1.46 In. Overall Weight: 34.40 Oz. (Unloaded) Twist Rate: 1:16.5-in RH Twist Grooves: 6 Frame Material: Stainless Steel Frame Finish: Stainless Steel Cylinder Material: Stainless Steel Cylinder Finish: Stainless Steel Barrel Material: Stainless Steel Barrel Finish: Stainless Steel Safety: Hammer Block