Firearms

Armalite AR-10B .308 Win 20-inch

Schematic

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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

Original-style AR-10B uses a 20-round AR-15-pattern magazine style lower; distinct from AR-10A.

Type: Rifle

Action: Semi-Automatic

Caliber: .308 Win

Capacity: 20

Year introduced: 1995, USA

Weight: 9.25 oz

Overall length: 40"

Status: Discontinued

Intended use: Hunting/Collecting