This project is a redesign of the KF5 lower receiver, The original design used A2 pistol grips, but this redesign converts it into a monolithic design, offering improved durability and a cleaner, more streamlined build. The redesign includes enhanced magwell walls, a reworked trigger guard, and two distinct styles, each with compatibility for both default and binary trigger groups.

Development Status

• Alpha Phase: Completed
  The alpha prototype has undergone successful testing focused on:

• durability, Print tolerance and assembly fit

Results confirm structural integrity under controlled testing conditions.

• Current Phase: Public Beta Release
  The project has entered public beta, opening access to the design files for broader community evaluation. The goal of this phase is to collect user feedback on:

• Printability across different printers and materials

• Long-term durability and wear resistance
• Ease of assembly and potential tolerance adjustments
• Overall performance consistency

It is planned re-implement this design on original/custom MP5 uppers in future

Disclaimer

• Check Local Laws: Ensure compliance with all local regulations before printing.
• No Responsibility for Misuse: These files are for personal, non-commercial use only.

This project is made possible through collaboration between open-source designers, material engineers, and hobbyist testers. Community contributions are critical to refining and validating the design through real-world testing.

more information about this platform available on the original KF5 by @TheGatalog

LBRY Tags: mp5; 3dprinting; firearms; guns; kf5