Firearms

Ruger Mark II 5.5-inch

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Specifications

About

Notable Variants

Aftermarket Ecosystem

Historically Significant Examples

Serial Number Data

Production data from factory records and collector research. Year ranges are approximate for pre-1968 firearms.

Years	Serial Range	Count	Factory	Country	Confidence

Ruger Mark II with 5.5-inch bull barrel; second-generation Mark series with improved magazine release.

Type: Pistol

Action: Semi-Automatic

Caliber: .22 LR

Capacity: 10

Status: Discontinued

Intended use: Plinking / Target