The Cheetah-9 Hybrid SMG

The Cheetah-9 Hybrid SMG Features

The Cheetah-9 Hybrid SMG stands out with its compact telescoping design, ideal for builders seeking a portable yet powerful firearm concept. Its open-bolt, full-auto-only mechanism delivers an authentic submachine gun experience, tailored for 9mm ammunition.

Key highlights include:

• Upper Receiver Construction: Crafted from a robust 30mm x 2mm mild steel square box section tube for durability.
• Printed Lower Receiver: Designed to seamlessly accept standard 9mm Glock magazines for reliable feeding.
• Hybrid Build: Combines 3D-printed components with metal parts like the bolt (welded or pinned from square tubing and bar) for a balanced build.

This design merges practicality with innovation, offering a unique project for those passionate about custom firearms. Its compatibility with widely available Glock magazines adds to its appeal for DIY enthusiasts.

Difficulty & Build Time

• Skill Level: Intermediate to Advanced
• Estimated Build Time: 2-3 days
• Required Experience: Familiarity with 3D printing, metalworking (cutting and welding), and firearm assembly basics

Hardware and Tools Required

Required Hardware

• 30mm x 30mm x 2mm mild steel box section tube (for upper receiver)
• Square tubing and bar (for bolt construction)
• Standard 9mm Glock magazines
• Aluminum or steel block (for feed ramp, ideally)
• 6mm thick aluminum or steel plate (for trigger, ideally)

Recommended Tools

• 3D printer (compatible with PLA+ filament)
• Dremel with reinforced cutting discs (for metalwork)
• Drill (for chain drilling openings in steel tube)
• Welding or pinning tools (for bolt assembly)
• Basic hand tools (screwdrivers, files, etc.)
• Glass bed and gluestick (for printing surface prep)

The Cheetah-9 Hybrid SMG Parts

This downloadable file includes essential STL files for crafting the Cheetah-9 Hybrid SMG, covering critical components like the Lower Receiver, Feed Ramp, Magazine Catch, Trigger, and a Glock Magazine Body Assembly (designed by IvanTheTroll). For optimal results, the feed ramp and trigger are recommended to be cut from aluminum or steel rather than printed, ensuring durability under stress. Detailed build instructions are accessible via a PDF guide linked at The Gatalog.

Print settings are tailored for success, recommending eSun PLA+ filament with 100% infill for maximum strength. Special considerations include printing on a glass bed prepped with a gluestick to ensure adhesion, with a brim enabled to prevent warping. These files are designed to balance accessibility with the need for precision in assembly.

Printer Compatibility & Settings

The Cheetah-9 Hybrid SMG files are compatible with most FDM 3D printers capable of handling PLA+ filament, making them accessible to a wide range of hobbyists. Recommended settings include a nozzle temperature of 230°C, a bed temperature of 60°C, a layer height of 0.15mm, and no supports for streamlined printing. Using eSun PLA+ is advised for its strength and reliability in functional parts, with 100% infill ensuring the printed components can withstand assembly stresses.

Special requirements include a glass bed for optimal print adhesion and a brim setting to stabilize the print during the process. Ensure your printer is well-calibrated to handle the detailed geometries of the lower receiver and magazine components. These settings cater to builders aiming for precision and durability in their firearm projects.

Conclusion

The Cheetah-9 Hybrid SMG by ProfessorParabellum is a standout project for 3D printing and firearms enthusiasts, blending innovative design with practical functionality. With its compact form, Glock magazine compatibility, and hybrid construction, it offers a rewarding build for those ready to tackle an intermediate to advanced project. Download the files from The Gatalog, join the community at thegatalog.com, and start crafting your own unique submachine gun today!