Firearms

Smith & Wesson S&W Model 40

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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

The Model 40 Centennial is a fully enclosed hammer, double-action-only J-Frame revolver with an internal grip safety on the backstrap. It was ahead of its time as a DAO design optimized for snag-free concealment.

Type: Revolver

Action: Double-Action Only

Caliber: 38 Special

Capacity: 5

Year introduced: 1952, USA

Weight: 19 oz

Overall length: 6.3"

Status: Discontinued

Intended use: Concealed Carry