Firearms

Ruger AR-556 6mm ARC 18-inch

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Specifications

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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

Ruger AR-556 MPR in 6mm ARC with 18-inch barrel.

Type: Rifle

Action: Semi-Automatic

Caliber: 6mm ARC

Capacity: 26

Year introduced: 2020, USA

Weight: 100 oz

Overall length: 35.5"

Status: Active

Intended use: hunting, long-range