SSS.6.169 - Research Supplement: Low Back Pressure 5.56 Silencer Performance - Flow-Through vs. SURGE BYPASS, PIP, and LBP. Head-to-Head Detailed Comparisons (Members Only)

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SSS.6.169 - Research Supplement: Low Back Pressure 5.56 Silencer Performance - Flow-Through vs. SURGE BYPASS, PIP, and LBP. Head-to-Head Detailed Comparisons (Members Only)

Six 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 high flow rate characteristics and relatively high operator (shooter’s ear) Suppression Ratings on the untuned MK18 5.56x45mm NATO MK18 weapon system. The six silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. Their 5.56 MK18 suppression performance provides an excellent case study comparing current “low back pressure” rifle 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. However, there are significant exceptions. Hybrid designs have the potential to exhibit high performance in multiple regimes.

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 six low back pressure 5.56 rifle silencers that use various technologies to suppress AR15 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.6.162 - Combat Application Technologies CAT/SC/B1 and the HK P30L

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SSS.6.162 - Combat Application Technologies CAT/SC/B1 and the HK P30L

The CAT/SC/B1 (CAT SC) is a lightweight, highly advanced, and modular centerfire pistol silencer that exhibits extreme sound signature suppression performance for both operators and bystanders. The silencer’s combined performance, flow rate, and modularity, represent the most significant advancement in centerfire 9mm pistol suppression in recent history. The CAT SB-SHOCK technology, adapting characteristics from both SURGE BYPASS and DiVerge, results in maximizing performance in relatively small design envelopes; a significant benefit in suppressed handgun applications.

In this review, the CAT SC performance metrics depend upon suppressing a full-size handgun firing a full-power subsonic centerfire pistol cartridge. How would the CAT SC silencer perform on your self-defense handgun, in both long and short configurations?

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SSS.6.159 - Combat Application Technologies CAT/DD/A1 and the Savage Model 10 PC .308

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SSS.6.159 - Combat Application Technologies CAT/DD/A1 and the Savage Model 10 PC .308

The CAT/DD/A1 (CAT “Dirty Dave” or CAT DD) is a compact “K-sized” 7.62x51mm NATO rifle silencer intended for use on reciprocating weapons. The silencer exhibits a high flow rate and significant sound suppression for its size. Using a high pressure adaptation of CAT SURGE BYPASS technology, the CAT DD produces low relative FRP and is one of the most consistent compact 30-caliber rifle silencers evaluated in the research pedigree in this combustion regime.

In this review, the CAT DD performance metrics depend upon suppressing a supersonic centerfire rifle cartridge; no easy task. How would the silencer perform on your .308 bolt-action rifle, and does it have performance traits that are appropriate for semiauto use?

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SSS.6.148 - Combat Application Technologies CAT/MOB/A1 and the Heckler and Koch SP5 9x19mm Subgun

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SSS.6.148 - Combat Application Technologies CAT/MOB/A1 and the Heckler and Koch SP5 9x19mm Subgun

The CAT/MOB/A1 (CAT MOB) is a lightweight and highly advanced 36 caliber submachine gun silencer that exhibits extreme sound signature suppression performance. For its size and weight envelope, the MOB’s performance is even more significant. Notably, the CAT DiVerge technology in the MOB silencer appears to regulate the varied low pressure conditions throughout each stage of the silencer, reducing backpressure while simultaneously achieving maximum signature suppression. The CAT MOB exhibits the most advanced submachine gun suppression performance evaluated by the PEW Science laboratory, to date.

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

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SSS.6.147 - Combat Application Technologies CAT/JL/A1 and the Savage Model 10 PC .308

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SSS.6.147 - Combat Application Technologies CAT/JL/A1 and the Savage Model 10 PC .308

The CAT/JL/A1 (CAT JL) is a lightweight and extremely advanced 30 caliber rifle silencer that exhibits significant sound signature suppression performance. For its size and weight envelope, the JL’s performance is even more extreme. Notably, the CAT SNIPER2 technology in the JL silencer appears to balance a high early time flow rate with continuous and consistent stagnation relief throughout the silencer, resulting in not only high performance first round shot suppression, but also some of the most consistent performance evaluated on this host weapon system by PEW Science, to date.

In this review, the CAT JL performance metrics depend upon suppressing a supersonic centerfire rifle cartridge; no easy task. How would the silencer perform on your .308 deer rifle?

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SSS.6.141 - Combat Application Technologies CAT/SR/A1 and the Beretta 21A

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SSS.6.141 - Combat Application Technologies CAT/SR/A1 and the Beretta 21A

The Combat Application Technologies CAT/SR/A1 is a rimfire silencer that exhibits enhanced performance characteristics on a variety of rimfire host weapons of varied barrel length, including semiautomatic pistols with subsonic ammunition. It is rated for 5.7x28mm, and weighs only 2.8 ounces, as tested. The silencer exhibits no discernable first round pop in the tested combustion regime. Other than the removable end cap, the silencer is sealed; its monolithic DMLS titanium body may be cleaned with a variety of chemical solutions, including those offered by CAT.

How would the CAT SR perform on your .22 semiautomatic pistol?

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SSS.6.140 - Combat Application Technologies CAT/SR/A1 and the CZ 452 .22 Bolt-Action

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SSS.6.140 - Combat Application Technologies CAT/SR/A1 and the CZ 452 .22 Bolt-Action

The Combat Application Technologies CAT/SR/A1 is a rimfire silencer that exhibits enhanced performance characteristics on a variety of rimfire host weapons of varied barrel length, including bolt action rifles with subsonic ammunition. It is rated for 5.7x28mm, and weighs only 2.8 ounces, as tested. The silencer exhibits no discernable first round pop in the tested combustion regime. Other than the removable end cap, the silencer is sealed; its monolithic DMLS titanium body may be cleaned with a variety of chemical solutions, including those offered by CAT.

How would the CAT/SR/A1 perform on your .22 rimfire bolt action rifle?

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SSS.6.130 - Combat Applications Technologies CAT/WB/A1/718 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle

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SSS.6.130 - Combat Applications Technologies CAT/WB/A1/718 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle

The CAT/WB/A1/718 (CAT WB) is a compact and extremely advanced 5.56mm machine gun rated rifle silencer that exhibits significant back pressure reduction and sound signature suppression performance, for its size. Its sound suppression performance on both medium and short barrel 5.56x45mm rifles is significant. Notably, the CAT SURGE BYPASS technology in the silencer appears to balance high flow rate behavior with superior overall signature suppression. The silencer is available in two 3D-printed material options; proprietary Inconel alloy and Titanium. The weights of both models are notable. The CAT WB represents one of the most advanced systems evaluated by PEW Science, to date.

In this review, the CAT WB performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a commonly fielded gas-operated rifle, which is an incredibly difficult task. How would the CAT WB perform on your M4 with a 14.5-in barrel?

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SSS.6.129 - Combat Application Technologies CAT/WB/A1/718 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.129 - Combat Application Technologies CAT/WB/A1/718 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

The CAT/WB/A1/718 (CAT WB) is a compact and extremely advanced 5.56mm machine gun rated rifle silencer that exhibits significant back pressure reduction and sound signature suppression performance, for its size. Its sound suppression performance on a short barrel 5.56x45mm rifle is significant. Notably, the CAT SURGE BYPASS technology in the silencer appears to balance high flow rate behavior with superior overall signature suppression. The silencer is available in two 3D-printed material options; proprietary Inconel alloy and Titanium. The weights of both models are notable. The CAT WB represents one of the most advanced systems evaluated by PEW Science, to date.

In this review, the CAT WB 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 CAT WB perform on your AR15 short barrel rifle?

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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.6.120 - Combat Application Technologies CAT/ODB/A1/718 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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SSS.6.120 - Combat Application Technologies CAT/ODB/A1/718 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle

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 a short barrel 5.56x45mm rifle is significant. Notably, the CAT SURGE BYPASS technology in the silencer appears to balance high flow rate behavior with superior overall signature suppression, even when over-bored for the cartridge. 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.

In this review, the CAT ODB 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 CAT ODB perform on your AR15 short barrel rifle?

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