Firearms

Auto-Ordnance M1SB .45 ACP 16.5-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

Thompson in M1/M1A1 military style. Horizontal forearm, no Cutts compensator. Simplified WWII mil-spec look.

Type: Rifle

Action: Semi-Automatic

Caliber: .45 ACP

Capacity: 30

Year introduced: 1990, USA

Weight: 11.5 oz

Overall length: 39"

Status: Active

Intended use: Collector, Service