Zastava M21: Serbia's Military Service Rifle

Published on November 5, 2022
Duration: 10:51

This review provides an expert look at the Zastava M21, Serbia's military service rifle, presented by James Reeves of TFB TV. The M21 is highlighted as a purpose-built 5.56x45mm AK variant featuring a robust 1.5mm RPK-style receiver, polygonal rifling (M21B), and a gas-piston system optimized for low felt recoil. Its ergonomics include a Galil-style safety, tritium sights, and a side-folding stock, making it a capable platform adopted by numerous global military and law enforcement units.

Quick Summary

The Zastava M21 is Serbia's military service rifle, chambered in 5.56x45mm NATO. It features a robust 1.5mm RPK-style receiver, a cold hammer-forged chrome-lined barrel, and polygonal rifling on the M21B variant. Its cyclic rate is ~680 RPM, offering controllable full-auto fire, with accuracy around 3 inches at 100m.

Chapters

  1. 00:45Introduction to the Zastava M21
  2. 01:40Barrel and Receiver Features
  3. 02:14Ergonomics and Controls
  4. 02:43Full-Auto Performance
  5. 04:30Technical Interview: System and Caliber
  6. 05:21Accuracy Standards
  7. 06:14Recoil Management Engineering
  8. 08:09Physical Specifications
  9. 08:49Military Adoption and Optics

Frequently Asked Questions

What caliber is the Zastava M21 rifle?

The Zastava M21 is chambered in 5.56x45mm NATO. It is specifically engineered for this caliber, offering optimized performance and recoil management rather than being a conversion from 7.62x39mm.

What are the key features of the Zastava M21's receiver and barrel?

The Zastava M21 features a robust 1.5mm stamped steel receiver, similar to RPK construction, for enhanced rigidity. The barrel is cold hammer-forged, hard chrome-plated for longevity, and the M21B variant includes polygonal rifling for efficiency.

How accurate is the Zastava M21?

With standard military ball ammunition, the Zastava M21 is expected to achieve accuracy of approximately 8cm (3 inches) at 100 meters. Using match-grade ammunition can tighten these groups to around 5-6cm (2 to 2.5 inches).

What is the cyclic rate of the Zastava M21?

The Zastava M21 has a cyclic rate of approximately 680 rounds per minute. This rate is described as a 'sweet spot' that allows for excellent control, making it easier to fire single shots or controlled pairs.

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