Leber V2

Leber V2 Features

The Leber V2 stands out with its AR15 FCG compatibility, allowing users to utilize familiar AR15 hammer, trigger, and selector components for a reliable shooting experience. Its innovative use of bent sheet metal plates ensures the hammer, trigger, selector, and ejector are securely retained, interfacing with the receiver to eliminate stress on the external polymer housing.

• Factory HK Aesthetic: Features a flush polymer housing that mimics the original HK trigger pack look.
• Enhanced Durability: Steel plates at critical points and a built-in grip option significantly improve strength.
• Community-Inspired Design: Credits to @UberPoor on X/Odysee for the foundational ARMP5 V1 & V2 designs.

This lower is engineered for both functionality and visual appeal, making it a top choice for MP5 enthusiasts seeking a professional-grade upgrade.

Difficulty & Build Time

• Skill Level: Intermediate
• Estimated Build Time: 8-12 hours
• Required Experience: Familiarity with 3D printing, firearm assembly, and basic hardware installation

Hardware and Tools Required

Required Hardware

• SCS Reinforced FCG Plates:
  • 1x Leber V2 SCS Plate P1
  • 1x Leber V2 SCS Plate P2
• SCS Plate Hardware:
  • 1x M5x20 Socket Head Screw
  • 1x M5 Nut
  • 1x Flat-Tip Set Screw 18-8, M5 x 0.8 mm, 12 mm
• Ejector Hardware:
  • 1x 6MM ID, 6MM OD, 4MM Long Sleeve
  • 1x German HK Ejector with hammer CUT (Must be German made)
  • 1x HK Ejector Spring
• Fire Control Group Parts:
  • 1x AR15 Hammer
  • 1x AR15 Heavy Hammer Spring
  • 1x AR15 Trigger
  • 1x AR15 Trigger Spring
  • 1x AR15 Disconnector
  • 1x AR15 Disconnector Spring
  • 2x AR15 Trigger and Hammer Pins
  • 1x AR15 Selector
  • 1x AR15 Selector Detent
  • 1x AR15 Selector Detent Spring

Recommended Tools

• 3D Printer with compatible settings
• Screwdrivers and Allen keys for hardware assembly
• File or sandpaper for post-print finishing
• Drill (if minor adjustments are needed)

Leber V2 Parts

The Leber V2 file package includes STL files pre-oriented for printing with brims and supports where necessary, ensuring a smooth fabrication process. These files are tailored for creating the lower housing and associated components, designed to work seamlessly with the specified AR15 FCG parts. STEP files are also included, though they are not pre-oriented.

Recommended print settings include a 0.4mm nozzle, with a first layer height of 0.20mm and subsequent layer height of 0.15mm. Opt for 8 wall loops and 100% rectilinear infill to ensure structural integrity. Materials like PLA Pro or Polymaker PA6-CF are suggested for durability, with specific guidance available on Odysee by @s3igu2 for high-temp options.

Printer Compatibility & Settings

The Leber V2 files are compatible with most FDM 3D printers capable of handling PLA Pro or Polymaker PA6-CF materials. Recommended settings include a print temperature of 220°C for the nozzle and 60°C for the bed to achieve optimal results with PLA Pro. Ensure your printer supports a 0.4mm nozzle and can maintain consistent layer heights for precision.

For advanced users opting for PA6-CF, refer to the detailed guide on Odysee by @s3igu2 for exact settings. Pre-oriented STL files simplify the printing process, though attention to brims and supports is crucial for successful output.

Conclusion

The Leber V2 offers an exceptional blend of durability, aesthetics, and compatibility for MP5 and SP5 enthusiasts looking to elevate their builds with an AR15 FCG lower. With comprehensive hardware lists, detailed print settings, and community-inspired design, this file is a must-have for serious 3D printing and firearms hobbyists. Explore the assembly video on Odysee or the PDF guide for step-by-step instructions, and consider supporting future projects via the provided Bitcoin donation address.