Firearms

Colt LE6721 5.56 NATO 16.1-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

Updated LE6720 with flat-top stripped upper and mid-length gas system for softer recoil impulse.

Type: Rifle

Action: Semi-Automatic

Caliber: 5.56 NATO

Capacity: 30

Year introduced: 2011, USA

Weight: 6.4 oz

Overall length: 32.5"

Status: Active

Intended use: Law Enforcement, Tactical, Sport