Firearms

Sig Sauer MCX 5.56 NATO 16-inch

Schematic

Open full size ↗

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

Sig Sauer MCX, modular short-stroke piston carbine in 5.56 NATO. Foldable, multi-caliber platform adopted by special operations.

Type: Rifle

Action: Semi-Automatic

Caliber: 5.56 NATO

Capacity: 30

Year introduced: 2015, USA

Weight: 6.9 oz

Overall length: 35"

Status: Active

Intended use: Tactical, Military