Firearms

SIG Sauer M400 Tread 7.62x51mm 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

Large-frame M400-series AR-308 pattern rifle with 16-inch barrel and M-LOK free-float handguard.

Type: Rifle

Action: Semi-automatic

Caliber: 7.62x51mm

Capacity: 20

Year introduced: 2020, Germany/USA

Weight: 124 oz

Overall length: 34.5"

Status: Active

Intended use: Hunting/Tactical