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INTEGRALLY SUPPRESSED RIFLES AND
SUPPRESSED BARRELS
NOTE: Prices quoted do not
include any dealer fee, Federal Transfer Tax, state sales tax, or shipping
PAT Target $1500 
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PATS Target Stainless $1500 (shown with optional Hogue stock)

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RUGER HAS DISCONTINUED THESE
RIFLES. WE HAVE A HANDFULL LEFT. Our Model PAT and
PATS target rifles are unique in appearance because they don't look like
suppressed rifles! Externally identical to the standard Ruger 10/22T and K10/22T,
they retain the beautiful hammer-forged barrels and rugged laminated stocks of the
originals. OPTIONS include matching 4x32 scope, rings, and base;
Hogue rubber-coated stock; or any other 1022 stock (visit our OPTIONS page for a list of some stocks we keep on
hand). The rifles are very accurate and will function reliably with all types of
ammunition. Lead bullets are acceptable, though metal plated or lightly waxed
bullets will create less fouling. Quietest performance is achieved with subsonic or
standard velocity ammunition, but high velocity loads may go supersonic, creating a loud
sonic crack. In all cases sound reduction is on par with any other suppressed .22
rifle on the market. The noise generated is similar to that of a BB gun or air
rifle, depending upon the type of ammunition used. Cleaning is easily accomplished
by removing the monocore baffle unit, using a 1/4" Allen wrench. We also can convert a customer provided Ruger 10/22T barrel or K1022T
barrel, starting at $475 for the PAT configuration, and $525 for the PATS configuration.
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PACK Combo Kit $925

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PACKS Combo Kit Stainless $975 
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Our Model PACK and PACKS combo kit carbines offer
you the best deal in suppressed .22 rifles because each carbine comes complete with two
barrels and two stocks. You can quickly configure them as heavy barreled suppressed
rifles for match work and plinking; or switch them back to standard iron-sighted carbines
for those locales where suppressed hunting or possession is restricted. OPTIONS
include matching 4x32 scope, rings, and base, Hogue rubber-coated stock, or Butler Creek
synthetic stock (select OPTIONS
to view these accessories). With suppressed barrels attached, the rifles are
extremely accurate and will function reliably with all types of ammunition. Lead
bullets are acceptable, though metal plated or lightly waxed bullets will create less
fouling. Quietest performance is achieved with subsonic or standard velocity
ammunition, but high velocity loads may go supersonic, creating a loud sonic crack.
In all cases sound reduction is on par with any other suppressed .22 rifle on the
market. The noise generated is similar to that of a BB gun or air rifle, depending
upon the type of ammunition used. Cleaning is easily accomplished by removing the
monocore baffle unit, using a 1/4" Allen wrench. |
PAS blued
suppressed barrel ($550) or PASS Stainless Suppressed barrel ($600)

Our Model PAS and PASS .920" diameter heavy match suppressed barrels
are for people who want to suppress their own 10/22s. Please note, if you do not
already possess a target stock designed to accept a .920" bull barrel, you will need
to get one (to order it with the suppressor, select OPTIONS). You can attach the suppressed barrel
and stock yourself in under five minutes and switch back and forth between
configurations. With the PAS or PASS attached to your rifle, you will have an
accurate and quiet firearm. Use of lead bullets is acceptable, though metal plated
or lightly waxed bullets will create less fouling. Best performance is achieved with
match, subsonic, or standard velocity ammunition, as most high velocity loads will remain
transonic and could produce a noticeable sonic crack. In all cases sound reduction
is on par with any other suppressed .22 rifle on the market. The noise generated is
similar to that of a BB gun or air rifle, depending upon the type of ammunition
used. Cleaning is easily accomplished by removing the monocore baffle unit, using a
1/4" Allen wrench.
We also can convert a customer provided unfluted 1022 or
K1022 .920" bull barrel, starting at $475 for the PAS configuration, and $525 for the
PASS configuration. |
HARPO suppressor and rifle (not shown) $995
HARPOS stainless suppressor and rifle
(scope not included) $995
(Back by popular demand in an improved
model)

The HARPO and HARPOS respectively, are built on Ruger 10/22 and K10/22
actions. Named in honor of the Greek God of Silence, Harpocrates, these are the
quietest semiautomatic rifles we build. The factory barrel is sleeved and ported to
allow gas bleed early in the suppression process. This reduces gas pressure,
preventing most high velocity cartridges from going transonic or supersonic. Use of
lead bullets is acceptable, though metal plated or lightly waxed bullets will create less
fouling. Quietest performance is achieved with subsonic or standard velocity
ammunition, but most high velocity loads also will remain subsonic (Warning: Hypervelocity
rounds such as CCI Stinger may still produce a loud sonic crack). In all cases sound
reduction is on par with any other suppressed .22 rifle on the market. The noise
generated is similar to that of a BB gun or air rifle, depending upon the type of
ammunition used. The suppressor can be fitted with an optional cutoff sleeve ($100)
to close the gas bleed ports for those times when the extra velocity is desired. The
suppressor tube and monocore baffle insert can be removed for cleaning using a 1/4"
Allen wrench. The rifle comes standard with either a black synthetic or laminated
stock, depending upon availability. An optional 4x32 scope with ring mounts and base
is available at our OPTIONS
page. |
CLANDESTINE blued suppressed barrel ($675) or
CLANDESTINES Stainless Suppressed barrel ($675)

Our Model CLANDESTINE and stainless CLANDESTINES 1" diameter ported and
suppressed barrels are for people who want to suppress their own 10/22s.
The barrel is sleeved and ported to allow gas bleed early in the suppression
process. This reduces gas pressure, preventing most high velocity cartridges from
going supersonic. Accuracy remains unaffected. The suppressor can be fitted
with an optional cutoff sleeve ($100) to close the gas bleed ports for those times when
the extra velocity is desired. With the suppressed barrel attached to your rifle,
you will have an accurate and quiet firearm. Use of lead bullets is acceptable,
though metal plated, lightly waxed bullets will create less fouling. Quietest
performance is achieved with subsonic or standard velocity ammunition, but most high
velocity loads also will remain subsonic (Warning: Hypervelocity rounds such as CCI
Stinger may still produce a loud sonic crack). In all cases sound reduction is on
par with any other suppressed .22 rifle on the market. The noise generated is
similar to that of a BB gun or air rifle, depending upon the type of ammunition
used. The suppressor tube and monocore baffle insert can be removed for cleaning
using a 1/4" Allen wrench.
Please note, if you do not already possess a target stock designed to accept a
.920" bull barrel, you will need to get one (to order it with the suppressor, select OPTIONS). The barrel channel
in the stock will need to be enlarged to accept the 1" diameter suppressor. If
purchasing the stock from us, we provide this service free of charge. You can attach
the suppressed barrel and stock yourself in under five minutes and switch back and forth
between configurations.
We also can convert a customer provided Ruger 10/22 or
K1022 barrel, starting at $650 for either the CLANDESTINE or CLANDESTINES configuration.
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OUTBACK short barrel rifle (SBR) with
removable front sight and detachable suppressor ($1250)



Our Outback short barrel rifle (SBR) and detachable suppressor system (scope
and rings optional) is composed of a Ruger 10/22 takedown carbine with a shortened
12" barrel, threaded to accept both a removable backup front sight/thread protector
and lightweight STEALTH-D suppressor. Quietest performance is achieved with match,
subsonic, or standard velocity ammunition, as most high velocity loads will remain
transonic and could produce a noticeable sonic crack. The suppressor can be
disassembled for cleaning.
Note this firearm requires payment of two Federal
Transfer Taxes, one for the short barrel rifle, and the other for the suppressor.
We also can convert a customer provided Ruger 10/22
takedown carbine for $665. |
SHADOW suppressed short
barrel rifle (shown with optional 6 x 24 scope) $1225
or SHADOWS suppressed stainless short barrel rifle ($1225)

Other stock options available upon request

The SHADOW is a suppressed Ruger 10/22 short barrel rifle. The gas
bleed system can be adjusted from fully closed to fully open to accommodate a wider range
of ammo choices and sound suppression levels. Lead bullets are acceptable, though
metal plated or lightly waxed bullets will create less fouling. The porting prevents
most high velocity ammunition from going supersonic, avoiding a loud sonic crack. A
skeleton stock and high capacity magazine come with the rifle. Suppressor
disassembly and cleaning are easily accomplished with a 1/4" Allen wrench. uote.
Note this firearm requires payment of two Federal
Transfer Taxes, one for the short barrel rifle, and the other for the suppressor.
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SNIPER

Basic SNIPER shown with optional front swivel mount Picatinny rail,
quick-detach Rotapod RBA, Harris HBRMS bipod, S-lever lock, and BSA 4-16 x 40 scope |
SNIPER $725

The basic SNIPER internally suppressed barrel is mounted on a Savage
Mark II-FV bolt action .22 rifles. Like its name implies, this rifle is very
accurate. It's also the quietest suppressed firearm we make. Barely a whisper
is heard when it fires. This is due to the lack of mechanical noise and back
pressure associated with the operation of semiautomatic suppressed firearms. The
monocore baffle unit is internal and can be removed for cleaning. Lead bullets are
acceptable, though metal plated or lightly waxed bullets will create less fouling.
Quietest performance is achieved with subsonic or standard velocity ammunition, but
high velocity loads may go supersonic, creating a loud sonic crack. An optional 4x32
scope with ring mounts is available. |
SNIPER-L (internally suppressed Savage MKII-BV with laminate
stock; shown with optional scope and rings) $775

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SNIPER-TH (internally suppressed Savage MKII-BTV with laminate
thumbhole stock) $825 |

SNIPER-THS (internally suppressed stainless Savage MKII-BTVS
with laminate thumbhole stock) $890 |

SNIPER-P (internally suppressed Savage MKII-FVT with peep target
iron sights & synthetic stock) $875
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SNIPER-TR (integrally suppressed Savage MKII-TR with tactical
stock and bolt handle; scope and rings not included) $1125
This version of the SNIPER uses bleed holes to port gas from the barrel
into a suppressor tube that surrounds the barrel and a monocore baffle system, resulting
in the quietest SNIPER we make. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. The porting prevents most high
velocity ammunition from going supersonic, avoiding a loud sonic crack.
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image coming soon
SNIPER-II (integrally suppressed Savage MKII- FV-SR with
synthetic stock) $825
This version of the SNIPER uses bleed holes to port gas from the barrel
into a suppressor tube that surrounds the barrel and a monocore baffle system, resulting
in the quietest SNIPER we make. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. The porting prevents most high
velocity ammunition from going supersonic, avoiding a loud sonic crack. |
image coming soon
SNIPER-IIS (integrally suppressed stainless steel Savage MKII-
FSS with synthetic stock) $875
This version of the SNIPER uses bleed holes to port gas from the barrel
into a suppressor tube that surrounds the barrel and a monocore baffle system, resulting
in the quietest SNIPER we make. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. The porting prevents most high
velocity ammunition from going supersonic, avoiding a loud sonic crack.
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image coming soon
SNIPER-IIB (integrally suppressed Savage B22 FVSR with internal
10-round rotary magazine and synthetic stock) $875
This version of the SNIPER uses bleed holes to port gas from the barrel
into a suppressor tube that surrounds the barrel and a monocore baffle system, resulting
in the quietest SNIPER we make. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. The porting prevents most high
velocity ammunition from going supersonic, avoiding a loud sonic crack.
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image coming soon
SNIPER-IIBL (integrally suppressed Savage B22 BNS-SR with
internal 10-round rotary magazine and laminate stock) $995
This version of the SNIPER uses bleed holes to port gas from the barrel
into a suppressor tube that surrounds the barrel and a monocore baffle system, resulting
in the quietest SNIPER we make. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. The porting prevents most high
velocity ammunition from going supersonic, avoiding a loud sonic crack. |
NIMROD & NIMROD
II (shown with optional 4x scope and rings)
DISCONTINUED

The NIMROD is fitted inside a Marlin 7000 heavy barrel semiautomatic .22
carbine. This handy combination incorporates our smallest and lightest internal
suppression system in its 18" barrel. The monocore baffle unit can be removed
for cleaning
The NIMROD II uses a sleeved barrel which is ported to allow gas to bleed
early in the suppression process. This reduces gas pressure, preventing most high
velocity cartridges from going transonic or supersonic. It also is available with
the option to open or close the gas bleed-off ports. The suppressor tube and
monocore baffle unit can be removed for cleaning.
The NIMRODS II is a stainless steel version of the NIMROD II.
Despite their size, the NIMROD and NIMROD II are both quiet and accurate
with a wide range of ammunition. Lead bullets are acceptable, though metal plated or
lightly waxed bullets will create less fouling. Quietest performance is achieved
with subsonic or standard velocity ammunition, but high velocity loads may go supersonic,
creating a loud sonic crack. An optional 4x32 scope with ring mounts is
available. |
ORION
DISCONTINUED

The ORION is a suppressed barrel mounted on a seven-shot bolt action
Marlin XT-22VR rifle. Standard Marlin features include an ergonomically designed
black synthetic stock, stippled pistol grip with palm swell, beaver tail forend, thumb
activated safety, Pro-Fire adjustable trigger, blued heavy varmint barrel with
Micro-GrooveŽ rifling (16-grooves), swivel studs, grooved receiver for scope mount,
drilled & tapped receiver, rear & front scope bases. This rifle is as
accurate and quiet as our SNIPER model. Lead bullets are acceptable, though metal
plated or lightly waxed bullets will create less fouling. Quietest performance is
achieved with subsonic or standard velocity ammunition, but high velocity loads may go
supersonic, creating a loud sonic crack. The suppressor monocore baffle unit can be
easily removed for cleaning.
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COVERT
suppressed Marlin 70PSS barrel only

The COVERT is a suppressed barrel and mounting collar for the Marlin Model 70PSS
"Papoose" stainless takedown rifle. It is comparable in size and
performance to the suppressed AIR COMMANDO (Henry AR-7) barrel. The suppressed
stainless barrel, tube, and internal parts can be removed for ease of cleaning. Lead
bullets are acceptable, though metal plated or lightly waxed bullets will create less
fouling. Barrel porting prevents most high velocity ammunition from going
supersonic, avoiding a loud sonic crack. An optional 4x32 scope with ring mounts is
available.
At present we only can convert a customer provided Marlin
70PSS, $675. |
AIR COMMANDO & AIR COMMANDO II
suppressed barrel only, $600 & $800, respectively

The AIR COMMANDO is a suppressed .22 barrel for the Henry AR-7 Survival Rifle.
The internally suppressed barrel and monocore baffle unit can be removed for ease of
cleaning. Lead bullets are acceptable, though metal plated or lightly waxed bullets
will create less fouling. Quietest performance is achieved with subsonic or standard
velocity ammunition, but high velocity loads may go supersonic, creating a loud sonic
crack. An optional 4x32 scope with ring mounts is available.
The AIR COMMANDO II is a suppressed .22 barrel for the Henry AR-7 Survival Rifle.
It is comparable in size and performance to the suppressed COVERT (Marlin
70PSS). The suppressed barrel, tube, and monocore baffle unit can be removed for
ease of cleaning. Lead bullets are acceptable, though metal plated or lightly waxed
bullets will create less fouling. Barrel porting prevents most high velocity ammunition
from going supersonic, avoiding a loud sonic crack. An optional 4x32 scope with ring
mounts is available. |
ARTEMIS
suppressed Remington 597 HB barrel only

The ARTEMIS suppressed barrel is mounted on a Remington 597-HB .22 rifle. It is
comparable in size and performance to the PAT (Ruger 10/22T), only more economically
priced. The monocore baffle unit of the suppressor can be easily removed for
cleaning. Lead bullets are acceptable, though metal plated or lightly waxed bullets
will create less fouling. Quietest performance is achieved with subsonic or standard
velocity ammunition, but high velocity loads may go supersonic, creating a loud sonic
crack. An optional 4x32 scope with ring mounts is available.
We only can convert customer provided Remington 597-HB
for $550. |
HUNTER & HUNTER
II (scope and rings included) $725 & $795, respectively

The HUNTER suppressed barrel is mounted on a Savage 64 FVXP
semiautomatic .22 rifle. It is more economically priced than the suppressed
Ruger 10/22 series, yet sound suppression and accuracy are on par with it. Lead
bullets are acceptable, though metal plated or lightly waxed bullets will create less
fouling. Quietest performance is achieved with subsonic or standard velocity
ammunition, but high velocity loads may go supersonic, creating a loud sonic crack.
The monocore baffle unit mounted internally in the barrel and can be easily removed for
cleaning. The rifle comes with a two-piece Weaver type base and 4x32 scope with ring
mounts.
The HUNTER II suppressed barrel is mounted on a Savage 64 semiautomatic
.22 rifle. It is more economically priced than the suppressed Ruger 10/22
series, yet sound suppression and accuracy are on par with it. Lead bullets are
acceptable, though metal plated or lightly waxed bullets will create less fouling.
The suppressed barrel, tube, and monocore baffle unit can be removed for ease of
cleaning. Lead bullets are acceptable, though metal plated or lightly waxed bullets
will create less fouling. Barrel porting prevents most high velocity ammunition from
going supersonic, avoiding a loud sonic crack. The monocore baffle unit mounted
internally in the barrel and can be easily removed for cleaning. The rifle comes
with a two-piece Weaver type base and 4x32 scope with ring mounts. |
TICHO
CZ 455 & CZ 457 suppressed customer provided barrel, $750

TICHO is the Czech word for 'silence', and this integrally suppressed
barrel fits that description, just as it fits any CZ 455 and CZ 457 varmint model without
alteration. If you own a light barreled rifle, the stock may need some relieving, or
you can upgrade to a varmint stock. Either way, you will have tack-driving accuracy
coupled with almost silent operation. Thanks to multiple gas bleed ports, most high
velocity ammunition will remain subsonic, avoiding the noticeable crack associated with
supersonic rounds. The monocore baffle unit mounts directly to the barrel, and both
it and the suppressor tube can be removed easily for cleaning using only a 1/4" Allen
wrench. The TICHO is available with or without a rifle, and with or without a scope
and rings. If you desire the entire rifle, please contact us for a quote (versions
vary in price). |
MEASURING THE SOUNDS OF SILENCE
WARNING! Determining
the effectiveness of a suppressor is one part science, one part art, and one part PR (or
BS, depending upon your viewpoint). If math bores you or gives you a headache, then
you may want to skip the next few paragraphs. If you are glutton for punishment, or
really want to understand some of the voodoo and incantations associated with sound
pressure measurements, then read on. For those of you with an advanced appreciation
of mathematics and physics, the author must apologize in advance for keeping the following
explanations simple and incomplete. Now for the hard part.
The standard unit of
measurement for sound pressure level (loudness) is the decibel (dB, or 1/10th of a
bel). The term bel, and by extension, the decibel, was created in the 1920s by
engineers at the Bell Telephone Laboratories, and named in honor of the father of the
telephone, Alexander Graham Bell. Essentially, it was the renaming of a unit of
measure previously developed and refined over the years for the purpose of determining the
lowest audible reduction in sound the average human ear could detect through a telephone
line. The longer a telephone line is, and the more switches the signal passed
through, the greater the detectable loss of sound, so the decibel proved to be a useful
measurement for determining the efficiency of lines and switches, as well as the power
levels required to keep a sound reasonably audible. As a result, decibels are used
in other branches of science, most notably electronics, but for our purposes this
discussion is limited to its application in acoustics.
The decibel is a
representation of the ratio of the intensity of a sound to a stated baseline reference,
and therefore can be subjective. That is, whatever sound is used to form the
baseline reference, also determines the resulting decibel readings. If a whisper
forms the baseline reference, the dB reading for a shotgun muzzle blast will be higher
than if a Tarzan yell forms the baseline reference. Fortunately, a standard sound
pressure level of .0002 microbar (or 20 micropascals if you prefer), is the accepted
standard for 0 dB. A "bar" approximates the atmospheric pressure on Earth
at sea level, and a microbar is one millionth of a bar. Micropascals are equivalent,
but much smaller units of measure (one bar equals 100 billion micropascals).
Although the decibel has never been standardized by the International Committee for
Weights and Measures, it remains in common use by the manufacturers of sound measuring
devices. All else being equal, differences in any readings obtained by each device
most likely can be attributed to calibration errors or manufacturing quality
variances.
Because it is a ratio, the
decibel is expressed as a logarithm. You may recall from grade school math that a
logarithm is represented as an exponent (the raised number) of another number (called the
base), such as in the following example where the base number is 2.
22 = 2×2 = 4
23 = 2×2×2 = 8
24 = 2×2×2×2 = 16 25 = 2×2×2×2×2 = 32...........210
= 2×2×2×2×2×2×2×2×2×2 = 1024
In the preceding example, 22 is the logarithm for the value 4, just as 210 is
the logarithm for the value 1024. Note the great difference in actual values these
two logarithms represent. The last one is not simply five times larger than the
first one, it is 512 times larger. So as a logarithm increases arithmetically (2, 3,
4, 5...10), its value grows exponentially (in this example, 4, 8, 16, 32...1024).
If we use a larger base value, such as 10
(which just happens to be the base value of bels and decibels), the differences are far
more dramatic.
102 = 10×10 = 100
103 = 10×10×10 = 1000
104 = 10×10×10×10 =
10,000 105 = 10×10×10×10×10
= 100,000...........1010 =
10×10×10×10×10×10×10×10×10×10 = 10,000,000,000
The following table is an example
comparing dB levels from 0 to 100 with their equivalent values expressed as power ratios
and amplitude ratios (measure of proportional change in sound wave pressure).
dB |
power ratio |
amplitude ratio (proportional change
in sound wave pressure) |
100 |
10,000,000,000x |
100,000 |
90 |
1,000,000,000x |
31620 |
80 |
100,000,000x |
10,000 |
70 |
10,000,000x |
3162 |
60 |
1,000,000x |
1000 |
50 |
100,000x |
316.2 |
40 |
10,000x |
100 |
30 |
1000x |
31.62 |
20 |
100x |
10 |
10 |
10x |
3.162 |
0 |
1x |
1 |
Since firearms create sound pressures well
above 100 dB, the raw numbers would become quite huge if the dB scale wasn't applied.
The threshold for permanent hearing damage is generally considered to be 120 dB (one
trillion times greater than 0 dB), so dropping a firearm's report below this number
is sometimes seen as the Holy Grail of sound suppressors. Of course, it isn't really
all that simple. Other factors come into play, such as the frequency range involved
and the duration of the sound pressure. The latter is of importance because one
sound pressure may be perceived as being louder than another simply because it has a
greater duration, regardless of the actual dB reading. A 135 dB sound that lasts a
microsecond is likely to be perceived as quieter than a 130 dB sound that lasts a half
second. Interpreting dB values can be further confusing because, even though a
single dB number increase corresponds to a logarithmic increase, at the extreme pressure
ranges involved, the human ear is not always able to detect these changes. On
average, a firearm's sound pressure must drop 6 dB before the change is detected by the
human ear. Even if the subjective human factor is eliminated, test results by
"impartial" scientific analysis can be affected by many factors, including test
location (indoor range, wooded area, open field), ambient temperature, ammunition
selection, type of firearm, barrel length, placement of the microphone, or brand, model,
and calibration of the acoustic measuring device. In the final analysis, raw data,
testimonials, recorded video, or audio sound demonstrations are not conclusive evidence of
suppressor performance. But short of being there and shooting the suppressor
yourself, they may be all you have to go on.
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