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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SSS.6.33 - Research Supplement: 30 Caliber Hunting Silencers - First Round Pop (Members Only)

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SSS.6.33 - Research Supplement: 30 Caliber Hunting Silencers - First Round Pop (Members Only)

Eight silencers evaluated by PEW Science are included in this members-only Research Supplement to examine relative First Round Pop (FRP) performance characteristics. The silencers in this group were selected for their applicability and market popularity for use as hunting silencers; silencers possessing length and/or weight characteristics making them conducive to field use on bolt-action rifles.

This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations and to help frame objective loudness comparisons between the eight silencers in the FRP signature regime. This supplement is part of ongoing PEW Science small arm weapon system sound signature research.

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SSS.6.13 - CGS Helios QD and the Savage M10 PC .308

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SSS.6.13 - CGS Helios QD and the Savage M10 PC .308

The CGS Helios QD is a relatively compact 5.56mm machine gun silencer, but the bore tapers from 0.36-in to 0.375-in at the exit, allowing safe use with 30 caliber projectiles. Given its sound suppression performance demonstrated in PEW Science testing, this multi-use silencer may be extremely attractive to some users.

In this review, the Helios QD performance metrics depend upon suppressing a supersonic centerfire rifle cartridge; no easy task. How would the Helios QD perform, with both its solid and vented end-cap, on your .308 deer rifle?

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