Ruger AC-556 (Mini-14) .223 Rem Folding Stock & Bayonet Lug Fully - Transferable Machine Gun

Ruger AC-556 (Mini-14) .223 Rem Folding Stock & Bayonet Lug Transferable Machine Gun

Developed in the 1970s by Sturm, Ruger & Co., the AC-556 was Ruger's answer to the growing demand for lightweight, selective-fire rifles among police and military units. Based on the proven Mini-14 platform, the AC-556 added full-auto capability, a folding stock, and enhanced sighting systems. It was deployed by agencies such as the French Gendarmerie and various U.S. law enforcement departments, prized for its reliability, manageable recoil, and compact design. Today, it stands as one of the few factory-built machine guns available to civilian collectors under NFA regulations — a rare and storied firearm that bridges tactical utility and historical significance.

Own a piece of American firearms history with the Ruger AC-556 — a fully transferable Class III machine gun that blends battlefield reliability with collector-grade appeal. Originally designed for law enforcement and foreign military forces, this selective-fire variant of the iconic Mini-14 delivers uncompromising performance in a compact, rugged platform. Whether you're a serious collector, a Class III enthusiast, or a tactical aficionado, the AC-556 offers a rare opportunity to own a factory-original machine gun with deep historical roots and enduring utility.

With its blued steel finish, side-folding metal stock, and three-position fire selector (semi-auto, 3-round burst, full-auto), the AC-556 is engineered for versatility and control. The hardwood stock, paired with a checkered pistol grip and nylon sling, ensures comfort and stability in any scenario. From its bayonet lug to its flash hider, every detail speaks to its military pedigree and tactical readiness.

Selective Fire Capability
Three-position selector switch (semi/3-round burst/full-auto) for adaptable engagement.

Compact Side-Folding Stock
Steel construction with rubber cover for stability and easy transport.

Durable Hardwood Stock
Classic look with modern functionality, paired with a plastic upper handguard.

Precision Sights
Fixed blade front and adjustable peep rear sights for reliable target acquisition.

Bayonet Lug & Flash Hider
Enhances tactical versatility and reduces muzzle flash.

NFA Registered & Transferable
Fully compliant and legally transferable under the National Firearms Act.

Specifications

• Manufacturer: Sturm, Ruger & Co.
• Model: AC-556
• Type: Class III/NFA Fully Transferable Machine Gun
• Caliber/Gauge: .223 Remington
• Barrel Length: 14 inches
• Action: Gas operated, rotating bolt
• Finish: Blued steel
• Stock: Side-folding metal with rubber cover
• Grip: Checkered pistol grip
• Sights: Blade front sight and adjustable peep rear sight
• Magazine: Includes one 20-round magazine
• Fire Selector: Semi-auto / 3-round burst / Full-auto
• Safety: Lever set into front of trigger guard
• Receiver Markings: Standard Ruger factory markings
• Condition: Good; 85%+ original finish with cycling wear and handling marks
• Legal Classification: Registered under National Firearms Act (NFA); fully transferable