Arm yourself with the Ruger GP100 10mm Single Action Revolver. It is single action with a 6-round capacity. The stainless steel barrel with a satin stainless finish is 4.2-inches, and it is equipped with a Hogue stippled hardwood grip. The transfer bar safety finishes off the design. Ruger GP100 10mm Single Action Revolver - Handgun Rvolvr/Single Centre at Academy Sports