Model M&P R8 SKU: 170292 Caliber: .357 Magnum® /.38 S&W Special +P Capacity: 8 Rounds Barrel Length: 5" / 12.7 cm Front Sight: Interchangeable Rear Sight: Adjustable V-Notch WaeverRail included, detachable with screws Grip: Synthetic Frame: Large - Exposed Hammer Action: Single/Double Action Finish: Black Matte Overall Length: 10.5" / 26.7 cm Material: Scandium Alloy Frame - Stainless Steel Cylinder Weight Empty: 36.3 oz / 1,029.1 g Performance Center B Revolver Reliability with .357 Magnum Power PC Trigger with Trigger Stop PC Tuned Action Scandium Frame Performance Center guns originate from standard designs or are created from the ground up. From hand-cutting and fitting to fine tuning for precision, these firearms are top performers. Products from the Performance Center are the ultimate expression of old-world craftsmanship blended with modern technology.