The Quietest 5.56 Suppressor We’ve Shot? | Strategic Sciences MFMD

Published on March 5, 2026
Duration: 5:30

This guide details the installation and live-fire testing of the Strategic Sciences MFMD suppressor system, as demonstrated by an expert from Shark Coast Tactical. It covers configurations for 5.56mm and .308 caliber firearms, emphasizing its multi-functional design as a suppressor, flash hider, and muzzle brake. The expert highlights its impressive sound reduction capabilities, flash mitigation, and recoil control, deeming it a significant advancement in 5.56mm suppression technology.

Quick Summary

The Strategic Sciences MFMD is a 3D printed Inconel device functioning as a suppressor, flash hider, and muzzle brake. On a 14.5-inch 5.56mm barrel, it achieves 134 dB with the SDX module and is hearing safe with the MD module alone, offering 98% flash reduction and 60% recoil reduction.

Chapters

  1. 00:00First Shots with MFMD 5.56
  2. 01:00Introducing Strategic Sciences MFMD
  3. 01:17MFMD 5.56 Performance Specs
  4. 01:54Over-Barrel Design Explained
  5. 02:22SD & SDX Modules
  6. 03:055.56 Downrange Sound
  7. 03:51.308 Test with MD
  8. 04:09.308 Test with SDX
  9. 04:39Availability and Conclusion

Frequently Asked Questions

What are the key features of the Strategic Sciences MFMD suppressor?

The Strategic Sciences MFMD is a 3D printed Inconel device that functions as a suppressor, flash hider, and muzzle brake. It offers modularity with different extension modules (MD, SD, SDX) to tailor performance for various calibers and desired suppression levels.

How quiet is the Strategic Sciences MFMD suppressor on a 5.56mm rifle?

During testing on a 14.5-inch 5.56mm barrel, the MFMD with the SDX module achieved 134 dB, and with the MD module alone, it was still considered hearing safe. The reviewer described the sound reduction as 'insane' and a 'game-changer'.

What are the performance specifications for the Strategic Sciences MFMD?

For 5.56mm, the MD module offers 98% flash reduction and 60% recoil reduction, while the SDX module achieves 134 dB sound output and 99.99% flash reduction. It also performed effectively on .308 rifles.

Is the Strategic Sciences MFMD suppressor durable?

Constructed from 3D printed Inconel, a high-performance nickel-chromium superalloy, the MFMD is designed for durability and resistance to extreme temperatures and corrosive environments, making it suitable for demanding use.

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