Zastava M91: Serbia Modernizes its DMR to 7.62x54R

Published on March 13, 2020
Duration: 11:31

This guide details the field stripping process for the Zastava M91, focusing on its AK-pattern disassembly and the adjustment of its 3-position gas system. It highlights the importance of safety during maintenance, as explained by Ian McCollum, an expert in historical firearms.

Quick Summary

The Zastava M91 is Serbia's modern Designated Marksman Rifle (DMR) chambered in 7.62x54R, serving as an evolution of the M76. It features an AK-style long-stroke gas piston system, a stamped steel receiver with a bulged trunnion, and is often equipped with a POSP 4x24M1 scope. Commercial US versions undergo specific import modifications.

Chapters

  1. 00:00Introduction to the Zastava M91
  2. 00:24Historical Context and Caliber Shift
  3. 02:06Controls and Ergonomics
  4. 02:30Optics: POSP 4x24
  5. 03:52US Import Modifications
  6. 05:13Furniture and Features
  7. 07:22Field Stripping and Internals
  8. 09:43DMR vs. Sniper Rifle Philosophy

Frequently Asked Questions

What caliber is the Zastava M91 rifle chambered in?

The Zastava M91 is chambered in the 7.62x54R caliber. This caliber was adopted by the Serbian Army in the late 1980s, marking a shift from the previous 8mm Mauser used in the M76.

What is the primary role of the Zastava M91?

The Zastava M91 is designed as a Designated Marksman Rifle (DMR). It bridges the gap between standard infantry rifles and dedicated sniper rifles, offering enhanced accuracy and range for battlefield support.

What are the key features of the POSP 4x24M1 scope used on the M91?

The POSP 4x24M1 scope features a 4x magnification and includes an illuminated military reticle with a range-finding indicator. This reticle is calibrated to estimate distances to human-sized targets from 200 to 1000 meters.

How does the Zastava M91 differ from its predecessor, the M76?

The M91 transitioned from the M76's 8mm Mauser caliber to 7.62x54R and from a milled receiver to a stamped steel receiver with a bulged trunnion, reflecting modernization and cost-efficiency.

Related News

All News →

More Gunsmithing & DIY Videos You Might Like

More from Forgotten Weapons

View all →