A Special MPi-81 for an Infantry Fighting Vehicle

Published on July 25, 2022
Duration: 5:52

This guide details the installation and operation of the Steyr MPi-81 IFV Model, a specialized submachine gun designed for the Steyr/Saurer 4K 7FA infantry fighting vehicle. It covers mounting procedures, the use of its unique barrel locking lug, and the integration of accessories like a brass catcher. The guide also touches upon its dismounted functionality, highlighting its versatility.

Quick Summary

The Steyr MPi-81 IFV Model is a rare 9x19mm submachine gun variant designed for the Steyr/Saurer 4K 7FA infantry fighting vehicle. It features a specialized locking lug for vehicle port attachment, an extended barrel, a 1.5x optical sight with a 'donut' reticle, and a mount for a brass catcher bag.

Chapters

  1. 00:00Introduction to the MPi-81 IFV Model
  2. 01:18Barrel and Mounting Modifications
  3. 02:08Vehicle Integration and Stock
  4. 03:00Optical Sight Details
  5. 03:58Brass Catcher and Versatility

Frequently Asked Questions

What is the Steyr MPi-81 IFV Model?

The Steyr MPi-81 IFV Model is a specialized variant of the MPi-81 submachine gun, engineered for integration into the Steyr/Saurer 4K 7FA infantry fighting vehicle (IFV) through its firing ports.

How is the MPi-81 IFV Model mounted in a vehicle?

It utilizes a significantly longer barrel with a specialized locking lug, similar to a bayonet lug, to secure it into the vehicle's firing port. The muzzle is also enlarged to fit the port interface.

What are the key features of the MPi-81 IFV Model's optics?

The weapon is equipped with a 1.5x magnification optical sight, featuring a circular 'donut' reticle, which is comparable to the sight found on the Steyr AUG rifle.

Why was a brass catcher necessary for the MPi-81 IFV Model?

A metal tab was added to mount a brass catcher bag to prevent spent casings from accumulating inside the cramped interior of the IFV, which could otherwise lead to malfunctions or hinder operations.

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