Firearms

Primary Weapons Systems MK118 6mm ARC 18-inch

Schematic

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Specifications

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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

PWS MK118 in 6mm ARC with 18-inch barrel, applying the long-stroke piston system to a precision-length barrel for maximum 6mm ARC performance.

Type: Rifle

Action: Semi-Automatic

Caliber: 6mm ARC

Capacity: 15

Year introduced: 2021, USA

Weight: 120 oz

Overall length: 36"

Status: Active

Intended use: Precision Shooting, Long Range, Tactical