Firearms

STI International Duty One .45 ACP 5-inch

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Specifications

About

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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

STI Duty One 1911 in .45 ACP with rail and 5-inch barrel.

Type: Pistol

Action: Semi-Automatic

Caliber: .45 ACP

Capacity: 7

Year introduced: 2009, USA

Weight: 39 oz

Overall length: 8.5"

Status: Active

Intended use: Duty One fills law enforcement and duty markets with a rail-equipped 1911.