SSS.6.164 - Liberty Precision Machine Mach-L and the Q mini FIX 300 BLK Subsonic

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SSS.6.164 - Liberty Precision Machine Mach-L and the Q mini FIX 300 BLK Subsonic

The Liberty Precision Machine Mach-L is a lightweight full-size 30 caliber rifle silencer that demonstrates extremely high performance in multiple combustion regimes. For a traditionally-manufactured system, the performance of the Mach-L is an example of the upper echelon of staged design efficiency and consistency.  The technology in the titanium Mach-L is also implemented in the stainless steel Anthem 2 series; the Mach series may be considered identical to the Anthem 2 series, other than construction material.  Both the Mach and Anthem 2 series possesses user-adaptable mounting systems.

How would the Liberty Precision Machine Mach-L perform on your personal defense weapon?

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SSS.6.138 - Resilient Suppressors Jolene and the Q mini FIX 300 BLK Subsonic

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SSS.6.138 - Resilient Suppressors Jolene and the Q mini FIX 300 BLK Subsonic

The Resilient Suppressors Jolene is a 30 caliber rifle silencer that possesses significantly high supersonic centerfire rifle suppression performance with extremely light weight. Its subsonic suppression performance is also notable, despite exhibiting some first round pop.  The Jolene possesses a modular rear mounting interface that may be used with a variety of mounting solutions and muzzle devices; its included specialized direct thread mount is integral to its high performance, and results in a total system weight of 10.8 ounces, as tested.

How would the Resilient Suppressors Jolene perform on your personal defense weapon?

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SSS.6.127- Research Supplement: Unsuppressed Rifles; the 14.5-in M4A1 Mid-Gas as a Silencer Test Host (Public Article)

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SSS.6.127- Research Supplement: Unsuppressed Rifles; the 14.5-in M4A1 Mid-Gas as a Silencer Test Host (Public Article)

Bolt-action weapons allow for the elimination of variables to study pure sound signature suppression phenomena. PEW Science is continuing bolt-action weapon testing, analysis, and research. Automatic weapons introduce additional sources of overpressure to atmosphere, namely from their breach during function, which is necessary for ejection. Since the introduction of automatic rifle signatures into the Standard in Public Research Supplement 6.51, and automatic subgun signatures in Public Research Supplement 6.85, additional weapon system variables have been introduced that influence the sound fields, as mapped by the measured muzzle and at-ear signatures. 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 14.5-in M4A1 Mid-Gas automatic rifle chambered in 5.56x45mm NATO.

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SSS.6.124 - Research Supplement: Subsonic 300 BLK Suppression Performance - Flow-Through vs. Forward Flux vs. SURGE BYPASS vs. Conventional Silencers. Head-to-Head Detailed Comparisons (Members Only)

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SSS.6.124 - Research Supplement: Subsonic 300 BLK Suppression Performance - Flow-Through vs. Forward Flux vs. SURGE BYPASS vs. Conventional Silencers. Head-to-Head Detailed Comparisons (Members Only)

Five 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 silencers in this group were selected for their relevance to the three rifle silencer technology classes: Conventional, High Flow Rate, and Hybrid Design. The five silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. Their subsonic 300 BLK suppression performance provides an excellent case study comparing current rifle silencer technology.

Many silencers exhibit significantly different performance when using supersonic and subsonic ammunition. In general, increasing gross flow rate through a silencer can significantly reduce signature suppression performance, particularly with subsonic ammunition.  However, certain designs may significantly outperform others in this regard.  Quantifying these performance differentials is essential for characterizing hazards to the system operator and bystanders.

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 30 caliber rifle silencers that use various technologies to suppress subsonic 300 BLK sound 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.6.122 - Combat Application Technologies CAT/ODB/A1/718 and the Q mini FIX 300 BLK Subsonic

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SSS.6.122 - Combat Application Technologies CAT/ODB/A1/718 and the Q mini FIX 300 BLK Subsonic

The CAT/ODB/A1/718 (CAT ODB) is a relatively compact and extremely advanced 30 caliber machine gun rated rifle silencer that exhibits significant back pressure reduction and sound signature suppression performance, for its size and caliber designation. Its sound suppression performance on both subsonic 300 BLK and short barrel 5.56x45mm is significant. Notably, the CAT SURGE BYPASS technology in the silencer appears to balance high flow rate behavior with significant overall signature suppression, even when over-bored for the cartridge and even when using subsonic ammunition, which is highly unusual. The silencer is available in two 3D-printed material options; proprietary Inconel alloy and Titanium. The weights of both models are notable. The CAT ODB represents one of the most advanced systems evaluated by PEW Science, to date.

How would the CAT ODB perform on your personal defense weapon?

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SSS.6.109 - Research Supplement: The Quietest 300 BLK Subsonic Ammunition: Discreet Ballistics vs. S&B with the Rugged Razor762 (Members Only)

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SSS.6.109 - Research Supplement: The Quietest 300 BLK Subsonic Ammunition: Discreet Ballistics vs. S&B with the Rugged Razor762 (Members Only)

The Rugged Razor762 30 caliber centerfire rifle silencer is evaluated with two types of subsonic 300 BLK ammunition in this members-only Research Supplement to examine its relative First Round Pop (FRP) and overall sound signature suppression performance characteristics. Performance of the Razor762 with Discreet Ballistics 300 BLK 190gr Target ammunition is compared to that with S&B 300 BLK 200gr ammunition. Impacts to the PEW Science Suppression Rating on the standard 8-inch barrel 300 BLK bolt action platform are investigated.

This research supplement is intended to provide more information to PEW Science members with regard to the specific sound signature characteristics of multiples types of subsonic 300 BLK ammunition. This supplement is part of ongoing PEW Science small arm weapon system sound signature research.

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SSS.6.108 - Rugged Razor762 and the Q mini FIX 300 BLK Subsonic

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SSS.6.108 - Rugged Razor762 and the Q mini FIX 300 BLK Subsonic

The Rugged Razor is a “semi-compact” 30 caliber machine gun rated rifle silencer that possesses moderate sound signature suppression performance with relatively low back pressure. The silencer is advertised to have extreme durability and has a reasonable weight for extreme duty-use silencers of its size, at a total system weight of 18.2 ounces as tested. System weight is reduced to 16.8 ounces with the M2 brake. On the short barrel 300 BLK platform, the Razor possesses suppression performance on par with other traditionally designed compact 30 caliber rifle silencers.

How would the Razor762 perform on your personal defense weapon?

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SSS.6.107 - Sig Sauer SLH300TI and the Q mini FIX 300 BLK Subsonic

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SSS.6.107 - Sig Sauer SLH300TI and the Q mini FIX 300 BLK Subsonic

The Sig Sauer SLH300TI is a full size .30 rifle silencer with high flow rate (low back pressure), at the expense of suppression performance, with 300 BLK subsonic ammunition. Like some other rifle silencers, it is a direct-thread model possessing 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. Other versions of the silencer exist that interface with Sig Sauer’s Clutch-LOK QD mounting system.

How would the SLH300TI perform on your personal defense weapon?

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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.6.94 - 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.6.89 - 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.6.71 - CGS Hyperion and the Q mini FIX 300 BLK Subsonic

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SSS.6.71 - CGS Hyperion and the Q mini FIX 300 BLK Subsonic

The CGS Hyperion is a full-size 30 caliber rifle silencer that possesses extreme sound signature suppression performance in all flow regimes. The silencer has no perceptible first round pop on several weapon systems and is significantly quieter than many rifle silencers shown in PEW Science Sound Signature Reviews, to date. The silencer weighs 15 ounces, making it one of the lighter full-size .30 silencer systems on the market.

The sound suppression performance of the CGS Hyperion is extreme. How would the Hyperion perform on your personal defense weapon?

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SSS.6.70 - Silencer Central Banish 30 Gold and the Q mini FIX 300 BLK Subsonic

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SSS.6.70 - Silencer Central Banish 30 Gold and the Q mini FIX 300 BLK Subsonic

The Silencer Central Banish 30 Gold is a full-size and lightweight .30 rifle silencer that exhibits relatively high performance sound signature reduction, on average, for its design envelope. Note that the Banish 30 Gold is user-serviceable, allowing use on a variety of platforms. The Banish 30 Gold is not the same silencer as the Banish 30, in construction, features, or performance.

How would the Banish 30 Gold perform on your personal defense weapon?

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SSS.6.62 - SilencerCo Omega 9K and the Q mini FIX 300 BLK Subsonic

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SSS.6.62 - SilencerCo Omega 9K and the Q mini FIX 300 BLK Subsonic

The SilencerCo Omega 9K is a compact 9mm pistol silencer that is relatively versatile in potential application and durable enough for hard use. Although rated for automatic use with both supersonic and subsonic 300 BLK on barrels greater than or equal to 8 inches in length, its sound suppression performance on these platforms may be lower than that of dedicated 30 caliber silencers or longer over-bored 9mm pistol silencers.

How would the Omega 9K perform on your personal defense weapon?

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SSS.6.57 - Surefire SOCOM300-SPS and the Q mini FIX 300 BLK Subsonic

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SSS.6.57 - Surefire SOCOM300-SPS and the Q mini FIX 300 BLK Subsonic

The Surefire SOCOM300-SPS is a full-size 30 caliber machine gun rated rifle silencer that possesses competitive sound signature suppression performance in the subsonic flow regime with many silencers on the market. The back pressure generation of the SOCOM300-SPS is higher than that of the Surefire SOCOM762-RC2.

How would the SOCOM300-SPS perform on your personal defense weapon?

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SSS.6.51- Research Supplement: Unsuppressed Rifles; the 10.3-in MK18 as a Silencer Test Host (Public Article)

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SSS.6.51- Research Supplement: Unsuppressed Rifles; the 10.3-in MK18 as a Silencer Test Host (Public Article)

Bolt-action weapons allow for the elimination of variables to study pure sound signature suppression phenomena. PEW Science is continuing bolt-action 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 short-barrel automatic rifle chambered in 5.56x45mm NATO.

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SSS.6.50 - CGS Hyperion K and the Q mini FIX 300 BLK Subsonic

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SSS.6.50 - CGS Hyperion K and the Q mini FIX 300 BLK Subsonic

The CGS Hyperion K is a compact 30 caliber rifle silencer that possesses competitive sound signature suppression performance in the supersonic flow regime with many silencers on the market, especially for its size. Notably, the Hyperion K produces significantly reduced back pressure and respectable subsonic suppression performance; the combination of which is atypical. The silencer weighs 10.4 ounces, making it one of the lightest .30 silencers on the market.

The sound suppression performance variation, across different flow regimes, is more pronounced with silencers possessing high flow rate (low back pressure) characteristics, like the Hyperion K. How would the Hyperion K perform on your personal defense weapon?

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SSS.6.46 - Surefire SOCOM762-RC2 and the Q mini FIX 300 BLK Subsonic

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SSS.6.46 - Surefire SOCOM762-RC2 and the Q mini FIX 300 BLK Subsonic

The Surefire SOCOM762-RC2 is a full-size 30 caliber machine gun rated rifle silencer that possesses competitive sound signature suppression performance in the supersonic flow regime with many silencers on the market, while also possessing significantly reduced back pressure. Due to this reduction in back pressure, the subsonic suppression performance of the SOCOM762-RC2 suffers. However, its length, along with its type and quantity of baffles, enable it to achieve subsonic suppression performance similar to that of many compact to mid-size .30 rifle silencers on the current market.

The sound suppression performance variation, across different flow regimes, is more pronounced with silencers possessing high flow rate (low back pressure) characteristics, like the SOCOM762-RC2. How would the SOCOM762-RC2 perform on your personal defense weapon?

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SSS.6.45 - OSS HX-QD 762 and the Q mini FIX 300 BLK Subsonic

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SSS.6.45 - OSS HX-QD 762 and the Q mini FIX 300 BLK Subsonic

The OSS HX-QD 762 is a mid-size, relatively heavy, and durable .30 rifle silencer that exhibits class-leading back pressure reduction with a notable balance of sound signature suppression performance in the supersonic flow regime, but relatively inefficient sound signature suppression performance in the subsonic flow regime.

Users should note that most silencers exhibit significantly different sound suppression characteristics in different flow velocity and pressure regimes, i.e. when suppressing supersonic vs. subsonic cartridges. This sound suppression performance variation, across different flow regimes, is more pronounced with silencers possessing high flow rate (low back pressure) characteristics, like the HX-QD 762. How would the HX-QD 762 perform on your personal defense weapon?

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