CTX

CTX is an ultra-compact HPA pistol platform engineered for extreme speed and agility in competitive speedsoft.

Built around an innovative unified architecture, this configuration features an integrated hop-up design that combines the HPA engine, barrel, hop-up, and trigger board into a single block for fast assembly and zero alignment issues.

This package includes all required STL files to assemble the CTX platform, fully optimized for high-performance 3D printing and seamless integration with supported HPA systems.

The CTX platform utilizes standard ARP 9 magazines and supports a complete fire selector system (Semi, Burst, Binary, and Full Auto).

Required hardware (not included)

This listing includes the STL file package only. You must source and assemble commercial airsoft components and hardware before the platform is field-ready.

HPA engine

• BackDraft Innovations Phoenix (available now)
• Polarstar F2™ or Jack™ (CTX P* version coming soon)

Barrel / hop-up kit

• Standard AEG precision inner barrel (140–160 mm) and standard AEG bucking (hop-up chamber is integrated directly into the printed design)
• Standard ARP 9 magazines
• Standard trigger board and FCU specific to your selected HPA kit

Fasteners & inserts

• M3 heat-set brass threaded inserts
• M3 machine screws (typically 5–15 mm depending on assembly step)
• M3 machine screw (25 mm) for the mag release
• M2.5 headless/grub screws (×3) for the trigger and TDC hop-up system
• Standard springs for the trigger and mag release

Files are licensed for personal use only. Commercial use, resale, redistribution, or sharing of the files is strictly prohibited.