Results



We are testing in accordance with MIL-STD-1474D using calibrated military-approved equipment and provide these or unweighted results. Measurement equipment includes calibrated Brel & Kjr model 2209 Impulse Precision Sound Level Meter with 20 μs rise time using GRAS pressure measurement microphone model 40BP (Bruel & Kjaer model 4136 equivalent) while positioned one meter left and level with muzzle, oriented upward, and 1.6 meters above dirt/grass. Digital samples are taken from AC output signal path by M-Audio Solo at 10.4 μs intervals (96,000 per second) and 24 bit resolution (16.7 million possible steps). Recording hardware rise-time has been estimated at (using the 0.35/BW formula) 8.75 microseconds while the microphone is estimated to have a rise-time of 5.0 microseconds. Total system calibration during each use with Brel & Kjr model 4220 Pistonphone. Sound analysis is linear to better correlate with perception. Linear measurement results in higher levels than "A" weighing and this data should not be compared to MIL-STD data. Temperature and humidity measurements by Kestrel meters. Silencers will be examined for evidence of artificial environments. If present, this will be noted unless the medium can be removed.

Please see Testing Method for a more complete description as well as a link to the previous method last used on May 6th, 2005.

You may click on the top of any column to sort the data by that field. You may click on the model name for a detailed review.

.22lr unweighted
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SWR Warlock 0.00 0.00 0 0.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 117.7 43.0 3.8 0.0 0.0
AAC Pilot 5.04 1.00 4 3.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 119.8 40.9 7.2 10.3 13.6
Gemtech Outback II 0.00 0.00 0 0.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 120.8 40.0 7.6 0.0 0.0
SRT Arms Cheyenne XL 0.00 0.00 0 0.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 123.0 37.8 5.5 0.0 0.0
SRT Arms Apache 0.00 0.00 0 0.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 123.0 37.7 7.2 0.0 0.0
SRT Arms Cheyenne 0.00 0.00 0 0.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 123.2 37.6 9.2 0.0 0.0
Tac-Inv Tac65 $229.99 5.97 1.09 5.6 4.2 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 124.9 35.9 6.7 6.4 8.5 Disassembles
Tac-Inv Tac67 $359.99 5.97 1.08 5.5 9.5 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 125.1 35.6 11.4 6.5 3.7 Full auto rated, stainless baffles, disassembles.
SRT Arms Odessa $285.00 3.93 1.00 3.1 3.0 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 127.7 33.0 9.7 10.7 11.0 Shortest testest this session.
Tac-Inv Tac52 $244.99 5.20 1.09 4.9 3.7 0.00 60 50 29.50 2005-04-24 P22 3.5 CCI standard N/A 160.7 128.7 32.1 5.2 6.6 8.7 Disassembles
 
.308 MIL-STD-1474D
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SoundTech AWS $1150.00 22.50 1.38 33.7 45.0 0.00 74 56 29.80 2005-06-04 AWS 16.0 M80TZ N/A 169.8 138.6 31.2 2.9 0.9 0.7 Needs AI barrel.
SoundTech Black Star $685.00 9.38 1.63 19.6 30.5 0.37 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 139.9 29.5 2.9 1.5 1.0
SRT Shadow $625.00 8.13 1.50 14.4 27.8 0.38 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 141.2 28.1 -0.1 2.0 1.0 Shortest
Ops Inc. 3rd model 11.88 1.50 21 27.8 0.35 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 141.4 28.0 1.8 1.3 1.0 Needs special barrel profile.
AWC Thundertrap 8.75 1.63 18.3 36.5 0.35 74 56 29.80 2005-06-04 SSG-PIIK 20.0 M80TZ N/A 168.3 141.7 26.6 3.1 1.5 0.7
AAC Cyclone $650.00 8.25 1.50 14.6 30.5 0.37 74 56 29.80 2005-06-04 SSG-PIIK 20.0 M80TZ N/A 168.3 141.8 26.5 2.6 1.8 0.9 All welded.
Gemtech TPR-S 9.25 1.51 16.6 41.5 0.36 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 142.1 27.2 3.1 1.6 0.7 Bilock
SWR Omega 30 8.75 1.50 15.5 27.6 0.39 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 142.6 26.8 4.3 1.7 1.0
Fisher Enterprises DC $850.00 11.20 1.50 19.8 36.5 0.41 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 145.6 23.7 6.5 1.2 0.6 Connects onto Vortex.
Jet 0.308 $950.00 9.00 1.49 15.7 20.4 0.35 74 56 29.80 2005-06-04 M700 19.5 M80TZ N/A 169.4 149.7 19.7 3.2 1.3 1.0 Lightest
 
.308 subsonic MIL-ST
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SoundTech AWS $1150.00 22.50 1.38 33.7 45.0 0.00 74 56 29.80 2005-06-04 AWS 16.0 EBR Thumper N/A 159.0 121.3 37.7 6.9 1.1 0.8 Needs AI barrel.
SoundTech Black Star $685.00 9.38 1.63 19.6 30.5 0.37 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 121.4 35.9 9.5 1.8 1.2
Gemtech TPR-S 9.25 1.51 16.6 41.5 0.36 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 123.8 33.5 4.7 2.0 0.8 Bilock
AWC Thundertrap 8.75 1.63 18.3 36.5 0.35 74 56 29.80 2005-06-04 SSG-PIIK 20.0 EBR Thumper N/A 156.8 125.0 31.9 3.9 1.7 0.9
AAC Cyclone $650.00 8.25 1.50 14.6 30.5 0.37 74 56 29.80 2005-06-04 SSG-PIIK 20.0 EBR Thumper N/A 156.8 126.3 30.5 0.2 2.1 1.0 All welded.
SRT Shadow $625.00 8.13 1.50 14.4 27.8 0.38 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 127.0 30.3 11.5 2.1 1.1 Shortest
SWR Omega 30 8.75 1.50 15.5 27.6 0.39 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 127.7 29.6 1.9 1.9 1.1
Jet 0.308 $950.00 9.00 1.49 15.7 20.4 0.35 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 132.4 24.9 7.9 1.6 1.2 Lightest
Ops Inc. 3rd model 11.88 1.50 21 27.8 0.35 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 133.0 24.3 0.5 1.2 0.9 Needs special barrel profile.
Fisher Enterprises DC $850.00 11.20 1.50 19.8 36.5 0.41 74 56 29.80 2005-06-04 M700 19.5 EBR Thumper N/A 157.3 137.1 20.2 7.2 1.0 0.6 Connects onto Vortex.
 
.45 SMG MIL-STD-1474
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
Vector 45 $475.00 12.69 1.58 24.8 30.3 0.00 69 48 29.90 2005-11-01 UZI 0.0 American Eagle 230 N/A 0.0 135.8 0.0 N/A 0.0 0.0
 
40 S&W MIL-STD-1474D
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
Gemtech Raptor-40 9.00 1.50 15.9 11.6 0.47 88 36 29.90 2005-06-08 MP5/40 8.8 Ranger-SXT 180 N/A 156.8 125.9 30.9 6.9 1.9 2.7 3-lug.
 
5.45mm MIL-STD-1474D
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Krinkov $595.00 8.75 1.50 15.5 18.7 0.28 88 36 29.90 2005-06-08 AK-74 16.3 Wolf HP N/A 164.2 0.0 0.0 N/A 0.0 0.0 Barrel threads not aligned. Unsuppressed had no muzzle brake.
AAC Krinkov $595.00 8.75 1.50 15.5 18.7 0.28 88 36 29.90 2005-06-08 AKS-74U 8.3 Wolf HP N/A 167.9 144.5 23.4 -1.2 1.5 1.3 Unsuppressed had no muzzle brake.
 
5.56mm MIL-STD-1474D
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SoundTech M4-Wartech $585.00 8.00 1.50 14.1 0.0 0.00 84 67 0.00 2005-06-11 M700 20.0 Imported M193 N/A 165.1 130.6 34.5 0.5 2.4 0.0 8 inch can, Tested in GA.
Gemtech M4-96D $799.00 7.75 1.50 13.7 25.7 0.28 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 133.1 33.0 0.9 2.4 1.3
YHM 3100-A $535.00 6.62 1.62 13.7 25.0 0.30 54 81 29.90 2006-01-13 M4 14.5 Win Q3131 M193 N/A 165.3 134.0 31.3 1.2 2.3 1.3 Fast attach, weight includes net flash hider vs. A2.
AAC M4-2000 SOPMOD $695.00 7.25 1.50 12.8 23.7 0.28 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 134.3 31.9 2.7 2.5 1.3 Flash suppressor also works with KAC-M4QD
Gemtech M4-96D $799.00 7.75 1.50 13.7 25.5 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 134.4 30.4 0.7 2.2 1.2 Fast attach, BiLock.
HTG ARIS $576.00 6.00 1.50 10.6 19.0 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 135.1 29.7 5.5 2.8 1.6 Thead mount.
SWR SpecWar2 7.88 1.50 13.9 27.3 0.00 77 48 29.70 2005-05-28 M4 14.5 Win Q3131 M193 N/A 167.2 135.2 32.0 1.5 2.3 1.2
SWR SpecWar1 6.62 1.50 11.7 22.2 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 135.2 29.6 4.3 2.5 1.3 Thead mount.
KAC M4-QD $1200.00 6.38 1.52 11.6 22.0 0.30 54 81 29.90 2006-01-13 M4 14.5 Win Q3131 M193 N/A 165.3 135.4 29.9 -1.2 2.6 1.4 Fast attach. Weight includes net flash hider vs. A2.
KAC M4-QD $1200.00 6.38 1.52 11.6 22.5 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 135.6 29.3 2.5 2.5 1.3 Fast attach.
AAC M4-2000 $695.00 7.31 1.50 12.9 21.5 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 135.8 29.1 1.4 2.3 1.4 Fast attach.
SWR SpecWar2 7.88 1.50 13.9 27.3 0.00 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 135.9 30.2 -0.7 2.2 1.1
SoundTech M4-Wartech $585.00 6.94 1.50 12.3 21.2 0.27 77 48 29.70 2005-05-28 M4 14.5 Win Q3131 M193 N/A 167.2 136.0 31.2 5.6 2.5 1.5 2209 meter
SWR SpecWar2 7.88 1.50 13.9 27.3 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 136.0 28.8 0.1 2.1 1.1 Fast attach, BiLock.
AAC Omni $695.00 7.00 1.50 12.4 20.2 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 136.1 28.7 1.2 2.3 1.4 Works on A2 flash hider. One piece.
SoundTech M4-Wartech $585.00 6.88 1.50 12.2 21.2 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 136.3 28.6 2.9 2.4 1.3 Thead mount.
Gemtech HALO $675.00 7.75 1.50 13.7 25.0 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 136.9 27.9 3.3 2.0 1.1 Works on A2 flash hider. Two piece.
SoundTech M4-Wartech $585.00 6.94 1.50 12.3 21.2 0.27 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 136.9 29.2 4.4 2.4 1.4
KAC M4-QD $1200.00 6.50 1.51 11.6 22.3 0.30 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 137.0 29.2 5 2.5 1.3
SureFire FA556A $1200.00 7.62 1.50 13.5 19.6 0.27 54 81 29.90 2006-01-13 M4 14.5 Win Q3131 M193 N/A 165.3 137.4 27.9 0.4 2.1 1.4 Sound was 137.3 dB at right ear. Fast attach. Weight includes net flash hider vs. A2.
Tac-Inv Tac16 $374.99 6.63 1.63 13.8 23.7 0.30 58 85 29.90 2005-06-18 M4 14.5 Win Q3131A M193 N/A 166.1 137.7 28.4 3.9 2.1 1.2
SWR Wolverine 5.75 1.50 10.2 20.0 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 137.9 26.9 -0.3 2.6 1.3 Thread mount.
Gemtech M4-02 $495.00 6.19 1.38 9.3 17.8 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 138.8 26.1 4.2 2.8 1.5 Thead mount.
AAC Ranger $595.00 6.25 1.50 11 19.4 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 138.8 26.0 2.3 2.4 1.3 Thead mount.
HTG Eureka $548.00 4.62 1.50 8.2 15.0 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 139.9 24.9 2.4 3.0 1.7 Thead mount.
AAC SCAR-SD $995.00 5.88 1.50 10.4 17.6 0.29 54 81 29.90 2006-01-13 M4 14.5 Win Q3131 M193 N/A 165.3 141.4 24.0 3.3 2.3 1.4 Sound was 137.9 dB at right ear. Fast attach. Weight includes net flash hider vs. A2.
HTG Universal $477.00 5.62 1.00 4.4 8.2 0.00 69 48 29.90 2005-11-01 M4 14.5 Win Q3131 M193 N/A 164.8 144.2 20.6 -0.1 4.7 2.5 .22lr/.223 dual use. Thread mount.
 
5.56mm unweighted
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SoundTech M4-Wartech $585.00 6.94 1.50 12.3 21.2 0.27 60 42 29.88 2005-05-14 M4 14.5 Win Q3131 M193 N/A 166.5 137.7 27.8 4.8 2.3 1.3 B+K 2209 meter, linear setting.
AAC M4-2000 $695.00 7.25 1.50 12.8 23.7 0.28 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 138.8 29.5 -0.9 2.3 1.2 Quick release
Gemtech M4-96D $799.00 7.75 1.50 13.7 25.7 0.28 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 138.9 29.4 1.5 2.1 1.1 Bi-Lock mount
SoundTech M4-Wartech $585.00 6.94 1.50 12.3 21.2 0.27 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 140.6 27.7 3.2 2.3 1.3
SoundTech M4-Wartech $585.00 6.94 1.50 12.3 21.2 0.27 77 48 29.70 2005-05-28 M4 14.5 Win Q3131 M193 N/A 167.8 141.3 26.5 1.9 2.2 1.3 2209 meter
SRT Arms Hurricane $545.00 6.25 1.50 11 22.5 0.29 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 141.6 26.7 4 2.4 1.2
SoundTech Fatboy $585.00 6.13 2.00 19.3 30.5 0.26 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 141.9 26.4 7.6 1.4 0.9
SWR SpecWar2 7.88 1.50 13.9 27.3 0.00 77 48 29.70 2005-05-28 M4 14.5 Win Q3131 M193 N/A 167.8 142.0 25.8 3.6 1.9 0.9 2209 meter
KAC M4QD $1200.00 6.50 1.51 11.6 22.3 0.30 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 142.5 25.8 -0.6 2.2 1.2
AWC Optima 8.50 1.63 17.7 30.8 0.30 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 142.6 25.7 3.4 1.5 0.8 Not in catalog.
Gemtech M4-96C 6.19 1.50 10.9 18.2 0.28 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 142.8 25.5 1.1 2.3 1.4 Thread mount.
SWR Wolverine 5.76 1.50 10.2 20.0 0.30 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 142.8 25.5 2 2.5 1.3 Thread mount.
SWR Wolverine 7.13 1.50 12.6 23.5 0.30 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 143.1 25.2 3.9 2.0 1.1 AAC mount.
Gemtech HALO $675.00 7.81 1.50 13.8 25.1 0.29 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 143.7 24.6 3.7 1.8 1.0 Mounts to standard flash-hider.
AAC SCARS-D 5.88 1.50 10.4 19.5 0.28 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 147.6 20.7 1.2 2.0 1.1 Prototype.
Tac-Inv Tac16 $374.99 6.63 1.63 13.8 23.7 0.30 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 147.6 20.7 3.6 1.5 0.9 Disassembles.
American Manufacturing XXX Warrior $429.00 8.25 1.62 17 27.2 0.39 55 49 30.35 2005-05-06 M4 14.5 Win Q3131 M193 N/A 168.3 148.4 18.9 1.4 1.1 0.7 Overbored for 9mm.
 
9mm MIL-STD-1474D
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 84 67 0.00 2005-06-11 P226R 4.4 UMC 147 N/A 160.3 126.7 33.6 6 3.5 3.6 Tested in GA.
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 59 26 30.21 2005-05-13 G17 4.9 UMC 147 N/A 161.7 131.5 30.2 3.3 3.2 3.2 2209 meter, 4136 mic
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 131.9 29.6 5.6 3.1 3.2 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 84 67 0.00 2005-06-11 Taurus 4.9 UMC 147 N/A 160.1 135.2 24.9 4.8 2.6 2.9 Tested in GA. Had some grease in it.
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 Special-K N/A 160.3 136.8 23.5 4.8 2.4 2.7 2209 meter
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 59 26 30.21 2005-05-13 G17 4.9 UMC 147 N/A 161.7 137.7 24.0 1.7 2.5 2.8 2209 meter, 4136 mic
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 138.5 23.1 1.4 2.4 2.7 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 140.2 21.3 4.3 2.2 2.4 2209 meter
 
9mm SMG MIL-STD-1474
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Avenger 11.44 1.38 17 13.2 0.00 69 48 29.90 2005-11-01 UZI 0.0 UMC 147 N/A 0.0 125.1 0.0 N/A 0.0 0.0
Vector 45 $475.00 12.69 1.58 24.8 30.3 0.00 69 48 29.90 2005-11-01 UZI 0.0 UMC 147 N/A 0.0 135.0 0.0 N/A 0.0 0.0 This is a .45 ACP bore can.
 
9mm SMG unweighted
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Striker-2 $650.00 7.75 1.25 9.5 7.2 0.41 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 0.0 0.0 0.0 N/A 0.0 0.0 Forgot to test. Will be included in followup.
HK Navy 0.00 0.00 0 0.0 0.00 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 0.0 0.0 0.0 N/A 0.0 0.0
KAC SD $975.00 11.75 1.36 17.1 21.4 0.40 55 49 30.35 2005-05-06 MP5SD 5.7 IMI 115 N/A 0.0 123.6 0.0 4.7 0.0 0.0
KAC Navy $975.00 7.75 1.37 11.4 14.8 0.41 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 127.1 34.4 4.5 3.0 2.3 1/2-32 threads
AWC Mk9A 11.25 1.99 35 26.6 0.45 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 128.8 32.7 2.2 0.9 1.2 Bixler/SCRC patented 3-lug mount.
HK MP5SD 11.88 1.58 23.3 18.1 0.39 55 49 30.35 2005-05-06 MP5SD 5.7 IMI 115 N/A 0.0 129.8 0.0 0.5 0.0 0.0
SWR QD3K 8.63 1.38 12.9 9.0 0.43 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 130.7 30.8 7.1 2.4 3.4 Latka 3-lug mount
Gemtech Raptor 9 $635.00 9.00 1.38 13.5 9.9 0.43 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 131.9 29.6 -0.3 2.2 3.0 Latka 3-lug mount
AWC Tac-9 9.56 1.38 14.3 24.4 0.39 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 141.6 19.8 2.4 1.4 0.8 Bixler/SCRC patented 3-lug mount.
TROS Nemesis-9 $595.00 9.25 1.38 13.8 10.6 0.42 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 161.4 145.7 15.7 1 1.1 1.5 Latka 3-lug mount
 
9mm unweighted
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 59 26 30.21 2005-05-13 G17 4.9 UMC 147 N/A 162.9 131.1 31.8 2.6 3.3 3.4 2209 meter, 4136 mic, Linear.
SWR Omega-9 8.13 1.38 12.2 8.8 0.43 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 131.5 31.8 7.3 2.6 3.6 Did not cycle G17 well.
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 131.7 31.8 4.1 3.3 3.4 Dry
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 132.4 31.0 1 3.3 3.3 Dry
B&T SD USP9 7.88 1.38 11.8 15.0 0.43 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 133.2 30.2 6.7 2.6 2.0
CCF Impuls-IIa $750.00 7.75 1.38 11.6 15.1 0.43 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.5 133.6 29.9 8.4 2.6 2.0
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 137.2 25.5 4.3 2.7 2.7 2209 meter
AWC HP9 5.36 1.44 8.7 6.9 0.51 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 139.0 24.4 -0.7 2.8 3.5 Uses wipes, no Nielsen, jammed G17.
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 84 67 0.00 2005-06-11 Taurus 4.9 UMC 147 N/A 160.7 140.5 20.3 3.5 2.1 2.3 2209 meter, tested in GA. Had some grease.
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 Special-K N/A 161.4 140.9 20.5 4.5 2.1 2.4 2209 meter
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 141.8 21.6 3.1 2.2 2.5 Dry
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 59 26 30.21 2005-05-13 G17 4.9 UMC 147 N/A 162.9 142.1 20.8 0.9 2.1 2.4 2209 meter, 4136 mic, Linear.
Gemtech Vortex-9 7.31 1.26 9.1 6.2 0.41 55 49 30.35 2005-05-06 MP5N 8.8 UMC 147 N/A 163.3 142.3 21.0 N/A 2.3 3.4 One Shot Only as it has no LID.
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 143.3 19.4 0.2 2.0 2.2 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 143.4 20.0 5.3 2.1 2.3 Excessive grease in Nielsen
CCF Carbon Impuls-Iia $875.00 7.88 1.45 13 12.3 0.49 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 143.9 19.5 3.6 1.5 1.6 9/40/45 model with 9mm baffles.
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 145.5 17.2 2.8 1.8 2.0 2209 meter
AWC Jupiter Eye 7.90 1.35 11.3 14.7 0.39 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 146.2 17.1 2.1 1.5 1.2 Did not cycle G17. Only two shots for this test.
AWC Tac-9 9.19 1.38 13.7 24.0 0.39 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 148.9 14.4 0.5 1.0 0.6 Did not cycle G17 (not supposed to). Two shots only in test.
Gemtech SOS-9 5.08 1.25 6.2 4.2 0.39 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 149.0 14.3 0.2 2.3 3.4
 
9mm Wet MIL-STD-1474
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
SoundTech 9mm 0.00 0.00 0 0.0 0.00 84 67 0.00 2005-06-11 Taurus 4.9 UMC 147 N/A 160.1 121.6 38.5 -1.2 0.0 0.0 Tested in GA, ultrasound Gel.
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 123.1 38.5 -3.2 4.0 4.1 2209 meter
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 124.2 37.3 -1.8 3.8 4.3 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 161.5 129.1 32.5 3.2 3.4 3.7 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 Special-K N/A 160.3 129.8 30.5 -1.8 3.2 3.5 2209 meter
 
9mm Wet unweighted
Manufacturer Model Price Length Diameter Cu. In. Weight (oz) Bore Temp Humidity Pressure Date Weapon Barrel Length Ammunition Velocity (fps) Unsuppressed Suppressed Net First Round dB/ci dB/oz Details
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 122.0 41.7 -1.3 4.4 4.4 Wet, 5cc
CCF Impuls-IIa $750.00 7.75 1.38 11.6 15.1 0.43 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.5 123.5 40.2 -0.1 3.5 2.7 Wet, 5cc
B&T SD USP9 7.88 1.38 11.8 15.0 0.43 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 123.6 40.1 -2.8 3.4 2.7 Wet, 5cc
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 123.9 39.9 2.3 4.2 4.2 Wet, 5cc
AAC Evolution-9 $695.00 7.75 1.25 9.5 9.4 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 124.8 37.9 -0.3 4.0 4.0 2209 meter
CCF Carbon Impuls-Iia $875.00 7.88 1.45 13 12.3 0.49 55 49 30.35 2005-05-06 USP9 SD 4.7 UMC 147 N/A 163.5 126.9 36.6 2.5 2.8 3.0 Wet, 5cc, 9/40/45 model with 9mm baffles.
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 129.2 33.5 3.3 3.4 3.9 2209 meter
Gemtech Trinity $630.00 8.00 1.25 9.8 8.7 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 131.7 31.6 -7.2 3.2 3.6 Wet, 5cc
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 Special-K N/A 161.4 133.2 28.1 -5.7 2.9 3.2 2209 meter
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 77 48 29.70 2005-05-28 G17 4.9 UMC 147 N/A 162.7 133.3 29.4 -1.7 3.0 3.4 2209 meter
AWC Abraxas 5.72 1.00 4.5 6.3 0.39 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 135.4 27.9 2.5 6.2 4.4 Wet, 5cc, did not cycle G17 reliably. 3 shots only in test.
SWR GS9-K2 7.88 1.25 9.7 8.7 0.40 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 136.1 27.2 -12.3 2.8 3.1 Wet, 5cc
Gemtech SOS-9 5.08 1.25 6.2 4.2 0.39 55 49 30.35 2005-05-06 G17 4.9 UMC 147 N/A 163.3 138.3 25.0 -3.4 4.0 6.0 Wet, 5cc, only 3 shots. No LID.
 

 

Disclaimer:

While this data is captured in good faith and without bias under controlled circumstances, it is not always comparable to other environments or test equipment. An effort was made to have the data be reproducible and correlate with what a human observer would agree with, but your results may vary. This data must be interpreted with knowledge of how environmental factors such as temperature, humidity, and location effect the results. We do try to compare related products in the same session to make this data as comparable as possible. Please ask the manufacture for their specific test protocol. Do they use 10 or more shot averages or just take the best shot of the day? Ask them.

Individual suppressors may vary depending on age, condition, manufacturing tolerances, and cleanliness. Finally, there is more to a silencer that sound levels. Durability, weight, accuracy, length, attachment method, customer support, etc. all matter so please don't make a decision based on these numbers alone.


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