SSS.6.72 - Research Supplement: Taming the MK18, Part 2 - Surefire vs. CGS (Members Only)

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SSS.6.72 - Research Supplement: Taming the MK18, Part 2 - Surefire vs. CGS (Members Only)

Two silencers 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 two silencers were selected for their similar average sound suppression performance at the shooter’s ear on the standard PEW Science MK18 test host weapon system. Both silencers induce similar hearing damage risk to the shooter on this weapon platform, on average.

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 reviews, and to help frame objective loudness comparisons between three silencer configurations exhibiting differing sound suppression performance on the MK18 weapon system. Both the FRP and average sound signature suppression regimes are examined. This supplement is part of ongoing PEW Science small arm weapon system sound signature research.

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SSS.6.66 - CGS Helios QD and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.66 - CGS Helios QD and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The CGS Helios QD is a full-size machine gun silencer when compared to the size of typical 5.56mm rifle silencers. However, the bore tapers from 0.36-in to 0.375-in at the exit, allowing safe use with 30 caliber projectiles and potential use with even larger projectiles. In addition to the 3D-printed Inconel version of the silencer, a 3D-printed titanium version is available that significantly reduces the system weight.

In this review, the Helios QD performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a short barrel gas-operated rifle, which is an incredibly difficult task. How would the Helios QD perform, with its solid or vented end cap, on your AR15 short barrel rifle?

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