Knights Armament QDC 556 Suppressor Quick Review

Published on October 25, 2017
Duration: 3:56

This review of the Knight's Armament QDC 556 Suppressor highlights its robust construction and reliable quick-detach mounting system, featuring ball bearings and an indexing peg for consistent POI. While not the quietest option for short-barreled rifles with supersonic ammunition, its durability and full-auto rating make it a bomb-proof choice for demanding users. The speaker, demonstrating an experienced understanding of firearm acoustics and suppressor mechanics, suggests subsonic ammunition would significantly improve noise reduction.

Quick Summary

The Knight's Armament QDC 556 Suppressor is a durable, full-auto rated 5.56 suppressor with a reliable quick-detach system featuring ball bearings and an indexing peg for consistent POI. While its sound levels on short barrels with supersonic ammo are high (around 138-139 dB), it's built like a tank and expected to outlast the host rifle.

Chapters

  1. 00:04Introduction: Loud AR-15 Problem
  2. 00:33Introducing the KAC QDC Flash Hider
  3. 00:45KAC QDC 556 Suppressor Overview
  4. 01:16Quick Detach Mounting System Analysis
  5. 01:36Internal Mechanism: Ball Bearings & Indexing Peg
  6. 02:16Firing Demonstration
  7. 02:31Sound Level Assessment (dB)
  8. 02:54Subsonic Ammunition Potential
  9. 03:02Weight, Price, and Durability
  10. 03:21Future Desires: 30 Caliber Version
  11. 03:36Final Verdict: Bomb-Proof Suppressor

Frequently Asked Questions

What are the key features of the Knight's Armament QDC 556 Suppressor?

The KAC QDC 556 features a robust, full-auto rated construction with a high-temperature FDE Cera-cote finish. Its quick-detach system uses ball bearings and an indexing peg for repeatable mounting with minimal POI shift.

How loud is the KAC QDC 556 Suppressor on a short-barreled rifle?

On a 10.5-inch AR-15 with supersonic rounds, the sound level is estimated around 138-139 dB. While not hearing safe, this is typical for short barrels, and subsonic ammunition would significantly reduce noise.

Is the Knight's Armament QDC 556 Suppressor durable?

Yes, the suppressor is described as 'bomb-proof' and 'built like a tank,' indicating exceptional durability. It is rated for full-auto fire and is expected to outlast the rifle it's mounted on.

What is the price and weight of the KAC QDC 556 Suppressor?

The suppressor is not the lightest or cheapest option, with an MSRP around $1500. Specific weight figures were not provided, but its construction suggests a focus on durability over extreme lightness.

Related News

All News →

More Reviews Videos You Might Like

More from BurstReview

View all →