Ruger SP101 | .357 Mag | 4.2″ | 5rd | 5771

The Ruger SP101 (MFG# 5771) is a stainless-steel double-action revolver chambered for .357 Magnum. It features a 4.2-inch satin stainless barrel, a 5-round cylinder, and a fiber optic front sight paired with an adjustable rear sight. The frame accepts black rubber grips with wood inserts and incorporates Ruger’s transfer bar safety and a triple-locking cylinder for consistent alignment.

Practical applications for this configuration include range and precision practice as well as small-game field use where a robust, compact revolver is appropriate.

Product Specifications

• The manufacturer part number is 5771.
• The caliber is .357 Magnum.
• The barrel length is 4.2 inches.
• The cylinder capacity is 5 rounds.
• The frame and major components are made from stainless steel.
• The finish is satin stainless.
• The sighting system is a fiber optic front sight with an adjustable rear sight.
• The grips are black rubber with wood inserts.
• The overall length is 9.12 inches.
• The unloaded weight is approximately 29.5 oz.
• The barrel has 5 grooves.
• The action is double/single action.
• The safety system is a transfer bar mechanism.
• The cylinder locks with a triple-locking cylinder.
• The UPC is 736676057719.

Built with stainless construction and straightforward controls, the SP101 offers a balance of durability and simple maintenance. Its 4.2-inch barrel provides a useful sight radius while keeping the revolver manageable for range sessions and field carry. Ruger’s established safety features and robust cylinder design make this configuration a practical choice for shooters who value reliability and mechanical simplicity.

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