The Ruger GP100 in .357 Magnum (brand part no. 1762) is a double-action/single-action revolver built around a 4.2-inch stainless barrel with a fast-acquisition HiViz fiber optic front sight, giving shooters a durable, easy-to-aim wheelgun for range and defensive use. Ruger pairs the HiViz front with an adjustable rear sight and machines a 1-in-18.75-inch twist barrel, feeding the revolver from a 6-round cylinder. Among stainless double-actions in the revolvers category, the GP100 favors shooters who want a rugged .357 Magnum wheelgun with a fast, high-visibility sight picture.

Key Specifications

• Chambered in .357 Magnum.
• Cylinder capacity is 6 rounds.
• Features a 4.2-inch stainless barrel.
• The rifling twist rate is 1-in-18.75-inch.
• Front sight is a fast-acquisition HiViz fiber optic, paired with an adjustable rear.
• The action is double-action/single-action.
• Overall length measures 13 inches.
• The cylinder locks into the frame at the front, rear, and bottom in Ruger’s triple-locking design for a snug, repeatable lockup.

Frequently Asked Questions

What makes the front sight easy to see? A HiViz fiber optic front sight designed for fast target acquisition.

Is the rear sight adjustable? Yes, the rear sight adjusts for windage and elevation.

Buy the Ruger GP100 Revolver, HiViz Sight

A durable stainless .357 Magnum wheelgun with a fast HiViz sight picture is exactly what this GP100 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.