Star Z45: Spain's Improved MP40 Submachine Gun

Published on January 17, 2020
Duration: 11:02

This guide details the field stripping process for the Star Z45 submachine gun, as demonstrated by Ian McCollum. It covers barrel removal and receiver separation from the stock, highlighting the firearm's unique safety features. The process is presented with a strong emphasis on safety protocols, suitable for intermediate gunsmithing enthusiasts.

Quick Summary

The Star Z45, Spain's first successful mass-produced submachine gun, heavily influenced by the German MP40, features a unique two-finger progressive trigger for semi-auto and full-auto fire. It boasts a highly drop-safe mechanism and was produced in 9mm Parabellum and 9mm Largo variants.

Chapters

  1. 00:00Introduction and History
  2. 01:20Design and Markings
  3. 02:39Trigger Mechanism
  4. 03:59Sights and Safety Features
  5. 05:08Disassembly and Internal Safety
  6. 08:22Magazines and Adoption

Frequently Asked Questions

What makes the Star Z45's trigger system unique?

The Star Z45 features a two-finger progressive trigger. A partial pull with one finger allows for semi-automatic fire, while pulling both fingers back fully engages the full-automatic mode. This system requires significant force for full-auto operation.

How is the Star Z45 designed for safety?

It incorporates a highly drop-safe mechanism. A plunger on the bolt face must be depressed by the trunnion for the firing pin to strike the primer, preventing accidental discharge if the firearm is dropped.

What was the historical significance of the Star Z45?

Developed in 1942, the Star Z45 was Spain's first successful mass-produced submachine gun. It was heavily influenced by the German MP40 and was intended for potential export, though its production timing limited German adoption during WWII.

Can the Star Z45 fire different calibers?

The Star Z45 was chambered in both 9mm Parabellum and 9mm Largo. Export models in 9mm Parabellum often used modified 9mm Largo magazines with internal blocks.

More Gunsmithing & DIY Videos You Might Like

More from Forgotten Weapons

View all →