This is a file I designed a long while ago in conjunction with @offearth3d for a project.

It was meant to be more of a spec-ops style version of the ODST M6C suppressed pistol, featuring multiple barrel variations and a secondary magazine stored in the front of the body for a quick reload use and functioning as a pseudo foregrip.

This model is split into several pieces for simpler printing with lots of flat edges and a threaded barrel for a quick change scenario.

The stock uses two 1/8" rods (ideally metal) so it can extend or retract as needed as well.

Modelled by myself, rendered by @vault.3d.services