SSS.6.184 - Research Supplement: The Quietest 9mm Silencers - MP5 Silencer Detailed Loudness and Tone Comparisons (Members Only)

SSS.6.184 - Research Supplement: The Quietest 9mm Silencers - MP5 Silencer Detailed Loudness and Tone Comparisons (Members Only)

Eight silencer configurations evaluated by PEW Science are included in this members-only Research Supplement to examine relative First Round Pop (FRP) and overall sound signature suppression performance characteristics. The silencers in this group were selected due to their use on the HK MP5 submachine gun, and other pistol caliber carbine (PCC) platforms. The eight silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. Their 9mm MP5 suppression performance provides an excellent case study comparing current 9mm MP5 silencer technology.

Typically, silencers possessing a high flow rate also possess lower sound suppression performance with subsonic ammunition and potentially lower bystander suppression performance, in general. Also typically, silencers possessing a lower flow rate (higher back pressure) can reduce the level of operator protection by increasing ejection port blast. There are exceptions to these observations, and hybrid designs have the potential to exhibit high suppression performance in multiple combustion regimes while also reducing back pressure.

This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations in the aforementioned analytical test reports and to help frame objective loudness comparisons between eight 9mm suppressors that use various technologies to suppress 9mm weapon signatures. Both FRP and total sound signature suppression regimes are examined. This supplement is part of ongoing PEW Science small arm weapon system sound signature research. PEW Science thanks you for your support.

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SSS.6.182 - Dead Air Wolfman and the Heckler and Koch SP5 9x19mm Subgun

SSS.6.182 - Dead Air Wolfman and the Heckler and Koch SP5 9x19mm Subgun

The Dead Air Wolfman is a modular submachine gun silencer possessing mounting flexibility and durability metrics that provide a high degree of versatility.  In addition to sub-caliber use, the silencer may be used with rifle cartridges such as 5.56 NATO. The silencer is constructed of fully-welded stainless steel baffles and may be adapted to both long and short configurations.  Further utility is provided through the use of an optional wipe, which may increase gross suppression performance at the cost of decreased precision and increased back pressure.  The pure suppression performance of the Dead Air Wolfman is high and consistent with its traditional design.  System operators may be subjected to elevated hazard, relative to some competing models, due to its back pressure.

In this review, the Dead Air Wolfman performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun. How would the Dead Air Wolfman in both its long and short configuration perform on your 9mm pistol caliber carbine (PCC)?

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