Firearms

Ruger GP100 .327 Fed Mag 4.2-inch

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Specifications

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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 GP100 in .327 Federal Magnum with 4.2-inch barrel. Seven-round cylinder; highest capacity in the GP100 family.

Type: Revolver

Action: Double-Action Revolver

Caliber: .327 Federal Magnum

Capacity: 7

Year introduced: 2017, USA

Weight: 40 oz

Overall length: 9.5"

Status: Active

Intended use: Duty / Target