Firearms

CMMG MK57 Banshee 5.7x28mm 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

Compact AR pistol chambered in 5.7x28mm using FN P90 magazines via CMMG's Radial Delayed Blowback system.

Type: Pistol

Action: Semi-Automatic

Caliber: 5.7x28mm

Capacity: 40

Year introduced: 2019, USA

Weight: 59.5 oz

Overall length: 16.1"

Status: Active

Intended use: Home Defense, PDW