Firearms

Ruger AR-556 MPR .450 Bushmaster 18-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

Multi-Purpose Rifle in .450 Bushmaster, a hard-hitting straight-wall AR cartridge.

Type: Rifle

Action: Semi-Automatic

Caliber: .450 Bushmaster

Capacity: 5

Year introduced: 2020, USA

Weight: 70.4 oz

Overall length: 38.25"

Status: Active

Intended use: Large game hunting