Firearms

CMMG Mk4 RCE

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

Rifle Combat Engagement Mk4; enhanced trigger, M-LOK rail, RDB reliability updates for duty-role 5.56.

Type: Rifle

Action: Semi-Automatic

Caliber: 5.56x45mm NATO

Capacity: 30

Year introduced: 2022, USA

Weight: 112 oz

Overall length: 32"

Status: Active

Intended use: Patrol, Home Defense