SSS.6.101 - CGS SCI-SIX and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.101 - CGS SCI-SIX and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The CGS SCI-SIX is a is a full-size 5.56mm machine gun rated rifle silencer constructed of DMLS (3D-printed) Inconel 718. It exhibits high performance on the MK18 weapon system and is demonstrated to be one of the most balanced high performance designs on the current market, with extreme durability and lighter weight than some legacy designs. The production variant is the result of a multi-tiered third party performance evaluation process in a solicitation that was created by the end-user entity SC IRREGULARS. It is the first CGS production rifle silencer to feature a dedicated muzzle device mount.

In this review, the SCI-SIX 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 SCI-SIX perform on your AR15 short barrel rifle?

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SSS.6.100 - Dead Air Nomad-30 (1st Gen) and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.100 - Dead Air Nomad-30 (1st Gen) and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The Dead Air Nomad-30 is a mid-size, relatively light weight, and relatively durable .30 rifle silencer. As a 5.56x45mm rifle silencer, it can be considered full-size, relative to dedicated models for the cartridge. The Nomad-30 has been refined since its 2018 release, and is also offered in an updated titanium version which reduces the weight of the system by over 4 ounces. Users should note that the supersonic suppression and back pressure characteristics of the Nomad-30 (1st Gen) highlighted in this review represent lower bound performance of the silencer. Nomad-Ti 5.56x45mm data and analysis publication by PEW Science is forthcoming.

In this review, the Nomad-30 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 Dead Air Nomad-30 (1st Gen) perform on your AR15 short barrel rifle?

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SSS.6.99 - Q Full Nelson and the Q mini FIX 300 BLK Subsonic

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SSS.6.99 - Q Full Nelson and the Q mini FIX 300 BLK Subsonic

The Q Full Nelson is a full size and simple high-performance subsonic .30 rifle silencer with extreme performance in the subsonic combustion regime. Like the Half Nelson, the Full Nelson is a direct-thread model, and cannot be used with the Cherry Bomb muzzle brake. Although the direct-thread interface of the silencer possesses a 25-degree taper for use on tapered-barrel muzzles, the silencer can also attach to standard 90-degree shoulder muzzles due to adequate surface area at the mount interface.

How would the Full Nelson perform on your personal defense weapon?

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SSS.6.98 - YHM Turbo T2 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.98 - YHM Turbo T2 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The YHM Turbo T2 is a somewhat compact 5.56mm machine gun rated rifle silencer that possesses competitive sound signature suppression performance with many silencers on the market, while possessing higher back pressure compared to some designs. The silencer is capable of using mounts from other manufactures, which may enhance utility to some users. Without a mount, the Turbo T2 weighs only 10.4 ounces and is 5.5 inches long.

In this review, the Turbo T2 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 YHM Turbo T2 perform on your AR15 short barrel rifle?

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SSS.6.97 - HUXWRX CA$H 9K and the Heckler and Koch SP5 9x19mm Subgun

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SSS.6.97 - HUXWRX CA$H 9K and the Heckler and Koch SP5 9x19mm Subgun

The HUXWRX CA$H 9K is a compact 9mm pistol silencer that exhibits extremely low backpressure. At 7.5 ounces and 5.2 inches long in the direct thread configuration, the CASH 9K is lighter and smaller than many other 9mm submachinegun silencers on the current market, while also exhibiting superior sound signature suppression to the shooter, using the HK MP5. The holistic design and performance of the CA$H 9K is notable, especially for its size.

In this review, the HUXWRX CA$H 9K performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun. How would the HUXWRX CASH 9K perform on your 9mm pistol caliber carbine (PCC)?

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SSS.6.96 - HUXWRX CA$H 9K and the HK P30L

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SSS.6.96 - HUXWRX CA$H 9K and the HK P30L

The HUXWRX CA$H 9K is a compact 9mm pistol silencer that exhibits extremely low backpressure. At 8.0 ounces and 5.9 inches long, the CASH 9K is lighter and smaller than many other 9mm pistol silencers on the current market, while also exhibiting superior sound signature suppression to the shooter, using a full-size semiautomatic handgun. The holistic design and performance of the CA$H 9K is notable, especially for its size.

In this review, the HUXWRX CA$H 9K performance metrics depend upon suppressing a full-size handgun firing a full-power subsonic centerfire pistol cartridge. How would the CASH 9K perform on your self-defense handgun?

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SSS.6.95 - Otter Creek Labs Polonium-K and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.95 - Otter Creek Labs Polonium-K and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The Otter Creek Labs Polonium-K is a compact 5.56mm machine gun rated rifle silencer that possesses extremely competitive sound signature suppression performance with many silencers on the market, while possessing higher back pressure compared to some other compact designs. Users should note that the Polonium-K is capable of shooting projectiles as large as 6mm (.243) and is also available in a full-sized version that is an inch longer.

In this review, the Polonium-K 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 Otter Creek Labs Polonium-K perform on your AR15 short barrel rifle?

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SSS.6.94 - Otter Creek Labs Hydrogen-L and the Q mini FIX 300 BLK Subsonic

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SSS.6.94 - Otter Creek Labs Hydrogen-L and the Q mini FIX 300 BLK Subsonic

The Otter Creek Labs Hydrogen-L is a full-size and lightweight 30 caliber rifle silencer that exhibits very high sound signature suppression performance. The Hydrogen-L is constructed of titanium and has a user-adaptable mounting system. At 13.8 ounces with the direct thread mount, the Hydrogen-L is one of the lightest full size high performance rifle silencers on the current market.

How would the Hydrogen-L perform on your personal defense weapon?

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SSS.6.93 - Research Supplement: The Dead Air Sandman-S with the 5.56 Endcap (Members Only)

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SSS.6.93 - Research Supplement: The Dead Air Sandman-S with the 5.56 Endcap (Members Only)

The Dead Air Sandman-S 30 caliber centerfire rifle silencer is evaluated with the 5.56 mm end cap in this members-only Research Supplement to examine its relative First Round Pop (FRP) and overall sound signature suppression performance characteristics on the MK18. Performance of the Sandman-S is compared to that with the standard 30 caliber end cap. Impacts to the PEW Science Suppression Rating on the standard PEW Science MK18 test host weapon system are investigated.

This research supplement is intended to provide more information to PEW Science members with regard to the specific sound signature characteristics of 5.56 end cap use with the Dead Air Sandman-S on the MK18 compared with those from use of the standard 30 caliber end cap. This supplement is part of ongoing PEW Science small arm weapon system sound signature research.

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SSS.6.92 - Dead Air Sandman-S and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.92 - Dead Air Sandman-S and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The Dead Air Sandman-S is a compact 30 caliber machine gun rated rifle silencer that possesses moderate sound signature suppression performance with moderate back pressure on 5.56x45mm host weapons. When compared to dedicated 5.56 mm silencers, it should be considered full-size or large. The silencer is advertised to have extreme durability and is one of the heavier silencers on the market for its size, at a total system weight of 21.7 ounces, as tested.

In this review, the Sandman-S 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 Dead Air Sandman-S perform on your AR15 short barrel rifle?

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SSS.6.91 - Resilient Suppressors RS9 and the Heckler and Koch SP5K-PDW 9x19mm PDW Subgun

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SSS.6.91 - Resilient Suppressors RS9 and the Heckler and Koch SP5K-PDW 9x19mm PDW Subgun

The Resilient Suppressors RS9 is a compact and lightweight submachinegun silencer that exhibits extremely high suppression performance at the shooter’s ear, for its size. The silencer possesses a unique performance trait of increased overall performance with higher muzzle pressure; a characteristic allowing higher performance on shorter-barreled host weapons. This performance trait is atypical of many silencers.

In this review, the Resilient Suppressors RS9 performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun personal defense weapon (PDW). How would the Resilient Suppressors RS9 perform on your compact PDW 9mm pistol caliber carbine (PCC)?

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SSS.6.90 - Resilient Suppressors RS9 and the Heckler and Koch SP5 9x19mm Subgun

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SSS.6.90 - Resilient Suppressors RS9 and the Heckler and Koch SP5 9x19mm Subgun

The Resilient Suppressors RS9 is a compact and lightweight submachinegun silencer that exhibits extremely high suppression performance at the shooter’s ear, for its size. The silencer possesses a unique performance trait of increased overall performance with higher muzzle pressure; a characteristic allowing higher performance on shorter-barreled host weapons. This performance trait is atypical of many silencers.

In this review, the Resilient Suppressors RS9 performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun. How would the Resilient Suppressors RS9 perform on your 9mm pistol caliber carbine (PCC)?

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SSS.6.89 - Diligent Defense Co. Enticer S-Ti and the Q mini FIX 300 BLK Subsonic

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SSS.6.89 - Diligent Defense Co. Enticer S-Ti and the Q mini FIX 300 BLK Subsonic

The Diligent Defense Co. Enticer S-Ti is a mid-size and lightweight .30 rifle silencer that exhibits competitive sound signature reduction in the subsonic flow regime for its size, while possessing a modular rear mount capability. Note that the Enticer series also includes a longer Enticer L-Ti model, further increasing the sound signature suppression performance, albeit at the expense of increased length and weight.

How would the Enticer S-Ti perform on your personal defense weapon?

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SSS.6.88 - Diligent Defense Co. Enticer L-Ti and the Q mini FIX 300 BLK Subsonic

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SSS.6.88 - Diligent Defense Co. Enticer L-Ti and the Q mini FIX 300 BLK Subsonic

The Diligent Defense Co. Enticer L-Ti is a full-size and lightweight .30 rifle silencer that exhibits extremely competitive sound signature reduction in the subsonic flow regime, while possessing a modular rear mount capability. Note that the Enticer series also includes a shorter Enticer S-Ti model, further reducing the length and weight of the system, albeit at the expense of some sound signature suppression performance.

How would the Enticer L-Ti perform on your personal defense weapon?

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SSS.6.87 - Resilient Suppressors RSP and the HK P30L

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SSS.6.87 - Resilient Suppressors RSP and the HK P30L

The Resilient Suppressors RSP is an ultra-lightweight and advanced 9mm pistol silencer that is also relatively compact. At 7.9 ounces and 6.8 inches long, the RSP is lighter and smaller than many other 9mm pistol silencers on the current market, while also exhibiting superior sound signature suppression to the shooter, using a full-size semiautomatic handgun. The holistic design and performance of the RSP is notable.

In this review, the Resilient Suppressors RSP performance metrics depend upon suppressing a full-size handgun firing a full-power subsonic centerfire pistol cartridge. How would the RSP perform on your self-defense handgun?

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SSS.6.86 - GSL Phoenix and the Heckler and Koch SP5 9x19mm Subgun

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SSS.6.86 - GSL Phoenix and the Heckler and Koch SP5 9x19mm Subgun

The GSL Phoenix is a full-size submachinegun silencer that exhibits extremely high suppression performance and is relatively lightweight for its size. The plethora of mounting options, user-serviceability, and performance pedigree spanning decades, are notable. Note that the Phoenix is an updated version of the legacy MK-9K submachinegun silencer.

In this review, the GSL Phoenix performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun. How would the GSL Phoenix perform on your 9mm pistol caliber carbine (PCC)?

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SSS.6.85- Research Supplement: Unsuppressed Subguns; the HK SP5 and SP5K-PDW as Silencer Test Hosts (Public Article)

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SSS.6.85- Research Supplement: Unsuppressed Subguns; the HK SP5 and SP5K-PDW as Silencer Test Hosts (Public Article)

Bolt-action weapons allow for the elimination of variables to study pure sound signature suppression phenomena. PEW Science is continuing bolt-action and automatic rifle weapon testing, analysis, and research. The purpose of this Public Research Supplement is to present a first-look at muzzle blast phenomenology for a new addition to the published host weapon systems in the Standard; the so-called “pistol caliber carbine,” (PCC), or submachinegun, chambered in 9x19mm NATO.

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SSS.6.84 - Research Supplement: Taming the MK18, Part 3 - HUXWRX vs. Otter Creek Labs vs. Surefire (Members Only)

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SSS.6.84 - Research Supplement: Taming the MK18, Part 3 - HUXWRX vs. Otter Creek Labs vs. Surefire (Members Only)

Four 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 four silencers were selected for their high average sound suppression performance at the muzzle or shooter’s ear on the standard PEW Science MK18 test host weapon system. All four silencers induce differing hearing damage risk to the shooter and bystanders 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 five 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.6.83 - HUXWRX FLOW 556k and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.83 - HUXWRX FLOW 556k and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The HUXWRX FLOW 556k is a relatively compact 5.56mm machine gun rated rifle silencer that exhibits class-leading back pressure reduction and sound signature suppression performance for its size. Its sound suppression performance at the shooter’s ear on the standard MK18 is unprecedented. The silencer is constructed of 3D-printed 17-4 heat treated stainless steel, and represents one of the most advanced systems evaluated by PEW Science, to date.

In this review, the FLOW 556k 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 HUXWRX FLOW 556k perform on your AR15 short barrel rifle?

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SSS.6.82 - Energetic Armament ARX and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.82 - Energetic Armament ARX and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The Energetic Armament ARX is a relatively compact 5.56mm machine gun rated rifle silencer that possesses a high flow rate at the expense of sound signature suppression performance on the MK18. The silencer is extremely light, and weighs 8.8 ounces with its included direct-thread mount.

In this review, the ARX 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 Energetic Armament ARX perform on your AR15 short barrel rifle?

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