SSS.6.199 - Wolfpack Armory Disruptor 556 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.199 - Wolfpack Armory Disruptor 556 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The Wolfpack Armory Disruptor 556 is a full size and somewhat lightweight dedicated 5.56mm rifle silencer with HUB-mountable adaptability. With higher backpressure than many designs, weapon system tuning is highly recommended for the best user experience with this conventional baffle system. The silencer is fully welded, tubeless heat treated stainless steel, and is expected to be durable enough for most reasonable firing schedules. The end cap of the Disruptor 556 is removable for both repair and replacement.

In this review, the Wolfpack Armory Disruptor 556 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 Wolfpack Armory Disruptor 556 perform on your M4 with a 14.5-in barrel?

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SSS.6.197 - Combat Application Technologies CAT/KK and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.197 - Combat Application Technologies CAT/KK and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The Combat Application Technologies Kitty Kat (CAT KK) is a compact centerfire 6mm rifle silencer intended for high pressure applications on short barrels. The combination of suppression performance and back pressure reduction of the CAT KK is unprecedented for its size. At a total length of 4.75-in with its included mount, the silencer provides hazard reduction that meets or exceeds that of a significant amount of models on the current market, in a very competitive form factor. The length-truncated implementation of SURGE BYPASS technology in the silencer demonstrates the further industry advancement in hybrid designs that continue to eclipse the performance of legacy systems.

In this review, the CAT KK 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 KK perform on your MK18 with a 10.3-in barrel?

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SSS.6.196 - Otter Creek Labs Infinity and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.196 - Otter Creek Labs Infinity and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The Otter Creek Labs Infinity is a severe-use mid-size 30 caliber rifle silencer with an advanced but flexible hybrid design. In the role of a 5.56 rifle silencer, it is considered full-size. The silencer is user-configurable for different blast load flow states and allows the operator to adapt the system to a variety of host weapons. With a high early-time flow rate, the silencer may perform well on semiautomatic platforms even in its most restrictive configuration. For sensitive platforms, the user may fully vent blast loads from multiple stages of the silencer, lowering back pressure to a minimum for this design. The Infinity is 3D-printed from Inconel alloy and is expected to offer significant durability for hard use. The vented end cap configurations of the Infinity produce performance that scales well with increasing barrel lengths.

In this review, the Otter Creek Labs Infinity 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 Otter Creek Labs Infinity with three of its different end caps perform on your M4 with a 14.5-in barrel?

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SSS.6.195 - FOR Systems Monarch Recce and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.195 - FOR Systems Monarch Recce and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The FOR Systems Monarch Recce is a compact high performance 5.56mm rifle silencer that is available in both 3D printed Inconel and titanium alloys. With extremely competitive gross signature suppression for its size, and a higher flow rate than typical for the type of performance it offers, the Monarch Recce represents a significant advancement in compact centerfire rifle suppression for the 10.3-in MK18 short barrel rifle. The silencer is HUB mount capable; the tested configuration is 5.13 inches long.

In this review, the FOR Systems Monarch Recce 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 FOR Systems Monarch Recce perform on your MK18 with a 10.3-in barrel?

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SSS.6.194 - Dillon Rifle Company DRC556 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.194 - Dillon Rifle Company DRC556 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The Dillon DRC556 is a somewhat compact dedicated 5.56mm rifle silencer with extreme muzzle suppression performance for its size. Constructed entirely of 3D-printed Inconel alloy, the silencer also offers the requisite durability for heavy firing schedules. The DRC556 is HUB-mountable and produces gross free field muzzle blast suppression on supersonic rifle platforms on par with that of much larger silencers; with its included direct thread mount, the silencer is only 5.75-in long. This performance, for form factor, is extremely significant. The back pressure induced by the DRC556 is not significantly high, though it is somewhat higher than some competing models in this performance class.

In this review, the Dillon DRC556 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 Dillon DRC556 perform on your M4 with a 14.5-in barrel?

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SSS.6.193 - Combat Application Technologies CAT/TSWIF and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.193 - Combat Application Technologies CAT/TSWIF and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The CAT TSWIF is a high performance low back pressure micro silencer intended to be used with pinned-and-welded blast diverter muzzle devices on 5.56 AR-15 weapon systems. Adding only 2.6 inches to the system length, the TSWIF provides consistent signature reduction expediently and in a compact package. The CAT TSWIF system is available in thread patterns compatible with blast diverters from Apparition Instruments, Noveske Rifleworks, and others. When compared to other compact silencers fielded on the typical 14.5-in M4 rifle, the CAT TSWIF provides competitive performance and allows blast diverter users to maintain BATFE non-SBR compliance as required.

In this review, the CAT TSWIF performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a commonly fielded gas-operated rifle outfitted with a blast diverter, which is an incredibly difficult task. How would the CAT TSWIF perform on your M4 with a 14.5-in barrel and pinned-and-welded blast diverter or flash suppressor?

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SSS.6.192 - Engaged Industries Operator 5.56 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.192 - Engaged Industries Operator 5.56 and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The Engaged Industries Operator 5.56 is a full length reduced diameter 5.56mm rifle silencer possessing a secondary retention mounting system that is simple to operate.  The silencer also has lower back pressure than several competing models; the suppression performance of the silencer is relatively balanced, especially for its size and weight. Notable aspects of the silencer’s performance include its consistent signature and only moderate first-round-pop.  At 1.5-in diameter, and less than 16 ounces including its mount system, the Operator 5.56 performance is relatively competitive in the broad 5.56 silencer market.

In this review, the Engaged Industries Operator 5.56 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 Engaged Industries Operator 5.56 perform on your MK18 with a 10.3-in barrel?

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SSS.6.191 - Combat Application Technologies CAT/RAT and the Sig MCX 300 BLK Short Barrel Semiautomatic Rifle (Free Version)

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SSS.6.191 - Combat Application Technologies CAT/RAT and the Sig MCX 300 BLK Short Barrel Semiautomatic Rifle (Free Version)

The Combat Applications Technology CAT/RAT is a multi-unit modular silencer system intended to suppress 300 BLK personal defense weapons (PDWs). Its advanced hybrid technology, fully adaptable performance, and specialized design for the SIG SAUER MCX family of systems, makes it one of the most unique examples of high performance suppressed small arm system optimization evaluated by the PEW Science Laboratory, to date. The end user may choose to field the CAT RAT in covert operations, high volume fire training scenarios, or close quarter vehicle environments and not sacrifice weapon system reliability. The CAT RAT is capable of suppressing both subsonic and supersonic 300 BLK from the complete range of MCX and Rattler system barrel lengths, as well as from other 300 BLK systems.

In this review, the CAT RAT system performance metrics depend upon suppressing a subsonic intermediate rifle cartridge on a short barrel gas-operated rifle, which is an incredibly difficult task. How would the three CAT RAT configurations perform on your 6.75-in 300 BLK SIG SAUER MCX or Rattler AR-18 system?

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SSS.6.189 - Q Southpaw and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.189 - Q Southpaw and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The Q Southpaw is a full-size 5.56mm rifle silencer possessing a simple and secure mounting system with construction materials that provide requisite durability for reasonable short barrel rifle use. Similar in overall design pedigree to Q’s other centerfire rifle silencers like the Trash Panda, the Southpaw marks the transition to dedicated 5.56mm bore aperture as well as stainless steel and Inconel alloy construction. As the Southpaw provides more consistent performance on 5.56 weapons than the Trash Panda, and is able to use the same type of mounting system, it offers a “plug and play” option for those users wanting to nominally improve overall suppression performance while enhancing resiliency and potentially even visual signature mitigation.

In this review, the Q Southpaw 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 Q Southpaw perform on your MK18 with a 10.3-in barrel?

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SSS.6.187 - Sylvan Arms SA223TIS and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.187 - Sylvan Arms SA223TIS and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The Sylvan Arms SA223TIS is a mid-size 5.56 rifle silencer that possesses a robust mounting system and a lighter weight than some competing designs. Its conventional baffle technology provides suppression performance that competes with models using similar technologies, as expected, and exceeds the performance of some designs. For use on short barrel rifles, the titanium-tube clad SA223TIS possesses a stainless steel blast chamber and baffles, adding some resiliency. The included taper mount with ratcheting retention securely seals; a direct-thread version of the silencer is also available.

In this review, the Sylvan Arms SA223TIS 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 Sylvan Arms SA223TIS perform on your M4 with a 14.5-in barrel?

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SSS.6.186 - Sylvan Arms SA30TI and the Savage Model 10 PC .308 (Free Version)

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SSS.6.186 - Sylvan Arms SA30TI and the Savage Model 10 PC .308 (Free Version)

The Sylvan Arms SA30TI is a full-size multicaliber rifle silencer that possesses a robust mounting system and a lighter weight than some competing designs. Its conventional baffle technology provides suppression performance that competes with models using similar technologies, as expected, and exceeds the performance of some designs. For use on short barrel rifles, the primarily titanium SA30TI possesses a stainless steel blast chamber and blast baffle, adding some resiliency. The included taper mount with ratcheting retention securely seals; a direct-thread version of the silencer is also available.

In this review, the Sylvan Arms SA30TI 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.6.185 - Otter Creek Labs Infinity and the Q mini FIX 300 BLK Subsonic (Free Version)

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SSS.6.185 - Otter Creek Labs Infinity and the Q mini FIX 300 BLK Subsonic (Free Version)

The Otter Creek Labs Infinity is a severe-use mid-size 30 caliber rifle silencer with an advanced but flexible hybrid design. The silencer is user-configurable for different blast load flow states and allows the operator to adapt the system to a variety of host weapons. With a high early-time flow rate, the silencer may perform well on semiautomatic platforms even in its most restrictive configuration. For sensitive platforms, the user may fully vent blast loads from multiple stages of the silencer, lowering back pressure to a minimum for this design. With subsonic 300 BLK, the Infinity is able to compete with many conventional silencers, while exhibiting some performance deficiencies in first-round-pop (FRP) control.

How would the Otter Creek Labs Infinity perform on your personal defense weapon?

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SSS.6.184 - Research Supplement: The Quietest 9mm Silencers - MP5 Silencer Detailed Loudness and Tone Comparisons (Article Preview)

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SSS.6.184 - Research Supplement: The Quietest 9mm Silencers - MP5 Silencer Detailed Loudness and Tone Comparisons (Article Preview)

Eight silencer configurations 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 due to their use on the HK MP5 submachine gun, and other pistol caliber carbine (PCC) platforms. The eight silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. Their 9mm MP5 suppression performance provides an excellent case study comparing current 9mm MP5 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. Also typically, silencers possessing a lower flow rate (higher back pressure) can reduce the level of operator protection by increasing ejection port blast. There are exceptions to these observations, and hybrid designs have the potential to exhibit high suppression performance in multiple combustion regimes while also reducing back pressure.

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 eight 9mm suppressors that use various technologies to suppress 9mm 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.6.183 - BOE Mod 1 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.183 - BOE Mod 1 and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The BOE Mod 1 is a full size multi-core rifle silencer. With its 5.56 core and solid end cap, the Mod 1 exhibits significant overall signature suppression performance, and its back pressure may be reduced with the use of a vented end cap. The outer tube of the BOE Mod 1 system is titanium, and the user may choose silencer cores of both different caliber and different material (Inconel or titanium). The 3D-printed cores are "swappable” by the user, from the manufacturer. Material choice, end cap choice, and core bore size choice will dictate user experience in blast overpressure suppression, depending on weapon system selection. The silencer’s core geometry provides a significant amount of surface area, which is one of factors producing its high muzzle suppression performance.

In this review, the BOE Mod 1 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 BOE Mod 1 perform on your M4 with a 14.5-in barrel?

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SSS.6.181 - Echo Zulu Defense X1R556-Ti and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.181 - Echo Zulu Defense X1R556-Ti and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The Echo Zulu Defense X1R556-Ti is a full size and lightweight 5.56mm rifle silencer that exhibits significant overall signature suppression performance with moderate back pressure reduction. Constructed entirely of 3D-printed titanium alloy, the HUB-mountable X1R556-Ti weighs only 11.1 ounces without a mount, which can enhance the ease of weapon handling. While the FRP control of the silencer is somewhat lacking, the overall signature reduction is high. The multi-stage hybrid ReFlow Technology in the silencer does show efficacy for reducing back pressure without compromising suppression performance, and is particularly well-suited to bolt-action rifle use.

In this review, the Echo Zulu Defense X1R556-Ti 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 Echo Zulu Defense X1R556-Ti perform on your M4 with a 14.5-in barrel?

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SSS.6.180 - Centurion Arms Maximus-L and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.180 - Centurion Arms Maximus-L and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The Centurion Arms Maximus-L is a full size 5.56mm machine gun rated rifle silencer that exhibits high signature suppression performance and back pressure reduction in a lightweight envelope. Constructed entirely of 3D-printed Inconel alloy, the HUB-mountable Maximus-L also exhibits significant durability to compliment its high degree of both bystander and operator hazard reduction on the standard MK18 weapon system. As a hybrid design with high flow rate, the silencer allows for high performance in a variety of environments.

In this review, the Centurion Arms Maximus-L 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 Centurion Arms Maximus-L perform on your MK18 with a 10.3-in barrel?

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SSS.6.179 - Otter Creek Labs Infinity and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.179 - Otter Creek Labs Infinity and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The Otter Creek Labs Infinity is a severe-use mid-size 30 caliber rifle silencer with an advanced but flexible hybrid design.  In the role of a 5.56 rifle silencer, it is considered full-size.  The silencer is user-configurable for different blast load flow states and allows the operator to adapt the system to a variety of host weapons.  With a high early-time flow rate, the silencer may perform well on semiautomatic platforms even in its most restrictive configuration.  For sensitive platforms, the user may fully vent blast loads from multiple stages of the silencer, lowering back pressure to a minimum for this design.  The Infinity is 3D-printed from Inconel alloy and is expected to offer significant durability for hard use.

In this review, the Otter Creek Labs Infinity 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 Otter Creek Labs Infinity perform on your MK18 with a 10.3-in barrel, with three of its different end caps?

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SSS.6.178 - Otter Creek Labs Infinity and the Savage Model 10 PC .308 (Free Version)

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SSS.6.178 - Otter Creek Labs Infinity and the Savage Model 10 PC .308 (Free Version)

The Otter Creek Labs Infinity is a severe-use mid-size 30 caliber rifle silencer with an advanced but flexible hybrid design.  The silencer is user-configurable for different blast load flow states and allows the operator to adapt the system to a variety of host weapons.  With a high early-time flow rate, the silencer may perform well on semiautomatic platforms even in its most restrictive configuration.  For sensitive platforms, the user may fully vent blast loads from multiple stages of the silencer, lowering back pressure to a minimum for this design.  The Infinity is 3D-printed from Inconel alloy and is expected to offer significant durability for hard use.

In this review, the Otter Creek Labs Infinity performance metrics depend upon suppressing a supersonic centerfire rifle cartridge; no easy task. How would the silencer perform on your .308 deer rifle, with both solid and vented end caps?

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SSS.6.176 - PTR VENT Spiritus 556i and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.176 - PTR VENT Spiritus 556i and the M4A1 Mid-Gas 5.56x45mm 14.5-in Barrel Automatic AR15 Rifle (Free Version)

The PTR VENT Spiritus 556i is a full size 5.56mm machine gun rated rifle silencer that exhibits highly advanced signature suppression performance and back pressure reduction.  Constructed entirely of 3D-printed Inconel alloy, the HUB-mountable VENT Spiritus 556i also exhibits some of the most significant operator hazard reduction on the standard short-barrel MK18 weapon system of any silencer evaluated by PEW Science to date.  When used on the popular 14.5-in barrel M4A1RIII mid-gas rifle, its muzzle suppression performance is class-leading.  In combination with minimal FRP and strong distal blast momentum control, the Purposely Induced Porosity (PIP) technology in the silencer allows for high performance in a variety of environments with notable potential to continue to advance performance thresholds in the suppressed small arms state of practice.

In this review, the PTR VENT Spiritus 556i 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 PTR VENT Spiritus 556i perform on your M4 with a 14.5-in barrel?

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SSS.6.175- PTR VENT Spiritus 556i and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.175- PTR VENT Spiritus 556i and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The PTR VENT Spiritus 556i is a full size 5.56mm machine gun rated rifle silencer that exhibits highly advanced signature suppression performance and back pressure reduction.  Constructed entirely of 3D-printed Inconel alloy, the HUB-mountable VENT Spiritus 556i also exhibits some of the most significant operator hazard reduction on the standard MK18 weapon system of any silencer evaluated by PEW Science to date.  In combination with minimal FRP and strong distal blast momentum control, the Purposely Induced Porosity (PIP) technology in the silencer allows for high performance in a variety of environments with notable potential to continue to advance performance thresholds in the suppressed small arms state of practice.

In this review, the PTR VENT Spiritus 556i 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 PTR VENT Spiritus 556i perform on your MK18 with a 10.3-in barrel?

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