Firearms

Sig Sauer MCX Rattler .300 Blackout 5.5-inch

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Specifications

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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

Ultra-compact MCX Rattler in .300 BLK — optimized for subsonic suppressed fire.

Type: Pistol

Action: Semi-Automatic

Caliber: .300 Blackout

Capacity: 30

Year introduced: 2018, Germany

Weight: 50 oz

Overall length: 16"

Status: Active

Military use: Yes

Intended use: Suppressed close quarters