Zastava's M90: The Serbian M70 Updated to 5.56mm

Published on September 3, 2021
Duration: 13:36

The Zastava M90 is a Serbian-made 5.56mm AK variant with a robust RPK-style receiver and an 18.1-inch barrel. Key features include an adjustable gas block for tuning performance and a side rail for optics. While generally reliable, users must use Zastava-pattern 5.56 magazines, as others may not be interchangeable.

Quick Summary

The Zastava M90 is a Serbian 5.56mm AK variant featuring a durable RPK-style 1.5mm receiver and an 18.1-inch barrel. It includes a three-position adjustable gas block for tuning performance and a side rail for optics, but requires specific Zastava-pattern 5.56 magazines.

Chapters

  1. 00:00Introduction & Furniture
  2. 01:14Zastava History & 5.56 AKs
  3. 03:12Receiver Markings & Stock
  4. 04:26Dust Cover & RPK Receiver
  5. 06:14Adjustable Gas Block Explained
  6. 07:04Barrel & Muzzle Specs
  7. 08:19Safety & Optics Mounting
  8. 09:36Magazine Compatibility Issues
  9. 10:20Range Testing & Performance

Frequently Asked Questions

What makes the Zastava M90 receiver durable?

The Zastava M90 features a heavy-duty 1.5mm thick stamped receiver, similar to an RPK, which includes a bulged front trunnion. This construction provides increased durability compared to standard AKM receivers.

Does the Zastava M90 have an adjustable gas system?

Yes, the Zastava M90 is equipped with a three-position adjustable gas block. This allows users to regulate the gas pressure for optimal performance with different ammunition types or when using a suppressor.

What is the barrel length of the Zastava M90?

The Zastava M90 comes with an 18.1-inch (460mm) barrel. This length is longer than typical AK barrels and is a traditional specification for Zastava's 5.56 caliber rifles.

Are 5.56 AK magazines interchangeable with the Zastava M90?

No, 5.56 AK magazines are not universally interchangeable. For reliable function with the Zastava M90, it is crucial to use specifically Zastava or Yugo pattern 5.56 magazines.

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