Desert Tech MDR: Issues Resolved

Published on February 18, 2019
Duration: 21:29

This guide details the reliability upgrades implemented by Desert Tech on the MDR rifle, as demonstrated by Ian McCollum and Karl Kasarda on InRangeTV. It covers the technical modifications made to the gas system, hammer spring, and extractor, followed by a comprehensive live-fire testing protocol to validate the improvements. The assessment concludes that the upgraded MDR is a technologically advanced .308 bullpup, surpassing competitors in ergonomics and features, with Desert Tech offering these upgrades as a free warranty service.

Quick Summary

Desert Tech has resolved previous reliability issues with the MDR by implementing three key upgrades: a redesigned six-port gas system, a stronger hammer spring, and a wider extractor. Live-fire testing confirmed 100% reliability over 100 rounds, with improved cycling and no malfunctions, even when hot. These upgrades are offered as a free warranty service.

Chapters

  1. 00:00Introduction and Issue Background
  2. 01:23Technical Modifications
  3. 03:29Live Fire Testing: Reliability
  4. 06:39Recoil and Ergonomics
  5. 08:06100-Round Stress Test
  6. 08:49Final Assessment and Comparison

Frequently Asked Questions

What were the main reliability issues with the original Desert Tech MDR?

Early Desert Tech MDR models experienced reliability problems, including failures to cycle properly and light primer strikes, particularly when using military surplus ammunition. These issues prompted Desert Tech to implement significant design revisions.

What specific modifications did Desert Tech make to improve MDR reliability?

Desert Tech redesigned the gas system with six adjustable ports, installed a stronger hammer spring to ensure positive primer ignition, and fitted a wider extractor to prevent cartridge rim damage and enhance durability.

How was the reliability of the upgraded Desert Tech MDR tested?

The upgraded MDR was tested extensively with Hirtenberger M80 ball ammunition, firing multiple 20-round magazines in both left and right-hand ejection configurations. A 100-round stress test, including rapid fire, confirmed 100% reliability even when the rifle was hot.

Is the Desert Tech MDR upgrade available to all owners?

Yes, Desert Tech offers these critical reliability upgrades as a free warranty service to existing owners of the MDR rifle, demonstrating their commitment to customer satisfaction and product improvement.

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