Change log
- 9/11/2024 Added step files as well as did huge updates to the ap5 lower to hopefully allow it to not be shit.

The Leber V1 MP5 Lower is a remix of Uberpoors ARMP5 V2 lower.
This version uses the same washers and grip inserts used in hoffman tacticals
super ar15 lowers. This lower is more of a pain in the ass to make thus the 2 versions,
if you would rather a easier alternative the ARMP5 V2 is the way.

M3x8mm Round coupling nuts used for the ejector can be found here
https://www.amazon.com/dp/B07SH44TB1?psc=1

This coupling nut is a somewhat odd part and needs to be cut down to roughly 6.8mm with a dremel or file.

ARMP5 V2

V2 of the ARMP5, a 3D printable MP5 Lower that takes AR FCGs, revamped from the ground up.

by S3igu2 & @UberPoor:9

Description

A 3D printable MP5 lower that utilizes AR FCGs.

Variants

• SP5 - Compatible with HK SP5 and SP5K
• AP5 POF ZF5 - Compatible with the AP5, POF, and ZF5 (and K versions of course). Also compatible with transferable or post sample HK MP5's.
• PTR Early Import HK - Compatible with full shelf MP5's, such as PTR and HK MP5's that precede the SP5.

Materials Required

Please follow the included ARMP5 V2 Documentation PDF for material manifest

Instructions

Please follow the included ARMP5 V2 Documentation PDF for printing and assembly instructions

Pedigree

The following models/geometry were referenced in the development of this project:

• KF5/SF5 Lower
• HK MP5 and MP5K Lowers

Change Log

• v20: Beta Candidate 1
  • Included compatibility across all manufacturers

License

No license has been selected as of 1/16/2024. No warranties expressed or implied. Use at your own risk.