Firearms

Windham Weaponry RMCS-4

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

Four-caliber RMCS kit with .22 LR, 9mm, 7.62x39, and 5.56 uppers. Windham's most versatile multi-caliber system.

Type: Carbine

Action: Semi-Automatic

Caliber: 5.56x45mm NATO

Capacity: 30

Year introduced: 2014, USA

Weight: 112 oz

Overall length: 32"

Status: Active

Intended use: Sport Shooting, Training, Plinking