SWD Incorporated Cobray M-11 / Nine 9mm Transferable Submachine Gun

SWD Incorporated Cobray M-11 / Nine 9mm Transferable Submachine Gun

The SWD M-11/Nine Submachine Gun is one of the most iconic and accessible fully transferable machine guns in the modern NFA market. Manufactured by SWD Incorporated between 1982 and 1986, this compact 9mm submachine gun traces its lineage directly to the legendary Ingram MAC-10 platform designed by Gordon Ingram. Known for its distinctive styling, high cyclic rate, and compact “machine pistol” design, the M-11/Nine remains one of the most recognizable and collectible automatic firearms produced in the United States.

Engineered as an evolution of the earlier MAC-11, the M-11/Nine features a longer receiver and bolt travel to support the more powerful 9mm Parabellum cartridge, providing increased firepower and improved recoil impulse compared to the .380 ACP predecessor. The result is a compact automatic weapon capable of delivering an astonishing rate of fire—often exceeding 1,200 rounds per minute—earning the platform its legendary “bullet hose” reputation.

Constructed from rugged stamped steel and operating on a simple open-bolt blowback system, the M-11/Nine prioritizes reliability and mechanical simplicity. Classic design elements include fixed blade and peep sights, a telescoping wire stock, and a distinctive Cobray-branded grip module. The compact footprint and lightweight design make the platform highly maneuverable, while the semi/SMG selector switch allows the shooter to transition between semi-automatic and fully automatic fire.

Today, the SWD M-11/Nine has evolved from its original reputation as a budget submachine gun into a highly sought-after transferable machine gun in the National Firearms Act collector market. Its popularity has been further enhanced by modern aftermarket upgrades—most notably from Lage Manufacturing—which dramatically improve ergonomics, accuracy, and controllability.

This example remains in excellent mechanical condition with original finish and light handling marks, making it an attractive addition for collectors seeking a historically significant, fully transferable machine gun platform.

Fully Transferable NFA Machine Gun
Registered transferable automatic firearm eligible for civilian ownership in compliant states under the National Firearms Act.

Historic MAC-Platform Design
Direct descendant of the legendary Ingram MAC-10 and MAC-11 machine pistol family.

9mm Parabellum Chambering
Upgraded from the original .380 ACP design to deliver greater ballistic performance and versatility.

High Cyclic Rate Performance
Capable of high rate of fire, often exceeding 1,200 rounds per minute for the classic “bullet hose” experience.

Stamped Steel Receiver Construction
Durable stamped steel upper receiver provides rugged reliability and long service life.

Simple Blowback Operation
Open-bolt design ensures dependable cycling with minimal mechanical complexity.

Telescoping Wire Stock
Compact collapsible stock enhances portability and storage while maintaining shooting stability.

Cobray-Branded Grip Frame
Distinctive grip module featuring the iconic Cobray snake logo associated with SWD production models.

Selectable Fire Modes
Left-side selector switch allows easy transition between semi-automatic and full-automatic operation.

Upgradeable Platform
Compatible with modern aftermarket upgrades and performance components, including advanced upper receivers.

Specifications

• Manufacturer: SWD Incorporated
• Model: M-11/Nine
• Firearm Type: Submachine Gun / Machine Pistol
• Classification: Fully Transferable Class III / NFA Machine Gun
• Action: Open-Bolt Blowback
• Caliber: 9mm Parabellum
• Fire Modes: Semi-Automatic / Fully Automatic
• Receiver Material: Stamped Steel
• Stock Type: Telescoping Wire Stock
• Grip Frame: Contoured Polymer Grip with Cobray Logo
• Sights: Fixed Blade Front Sight with Peep Rear Sight
• Front Grip: Nylon Strap Front Grip
• Selector Location: Left Side of Receiver
• Safety Location: Adjacent to Trigger Guard
• Production Period: Approximately 1982–1986
• Manufacturer Origin: United States
• Condition: Excellent overall with original finish and light handling marks
• Mechanical Condition: Mechanically excellent
• Magazine: Not included