I hope that this will get stickied. I will work on alphabetizing and providing manufacturer websites as things go along.
AAC
Aerocharger Ballistics
Aklys Defense
Allen Engineering
Alpha Dog
AMTAC
AWC
B&T AG
Barrett
BCI Defense
Black Aces Tactical
Black Rain Ordinance
Bowers
CF Gunworks
CGS Group
CMMG
Coastal Gun
Creative Arms
Crux
Dakota Silencer
Daniel Defense
Dark Horse
Dead Air
DeGroat Tactical Armaments
Defiance Suppressors (Made for KRISS)
Elite Iron
Energetic Armament
Freedom Armory Machine Works
Gemtech
Griffin Armament
GSL Technology
Innovative Arms
Iron Ridge Guns
Jet Suppressors
KDM Cans
KGmade
Knight's Armament
Liberty
Leviathan Suppressors
LMT Defense
NG2 Defense
Mack Brothers
Mirage ULR
Operator Suppressor Systems / OSS
Paladin Armory
Piedmont Cartridge
PSD Rifleworks
PTP Tactical
Q
Rebel Silencers
Rex Silentium
Ruger
Rugged
S and H Arms
Shark
Sig Sauer
SilencerCo
Small Arms Technologies
Smith Enterprise, Inc
Spike's Tactical
SRT Arms
Steal Engineering Group / SEG
Suppressed Armament
Surefire
Tactical Innovations
Tactical Solutions
Texas Silencer Company
Thompson Machine
Thunder Beast Arms
Torrent Suppressors
Troy Industries
Witt Machine
Yankee Hill Machine
AAC
Aerocharger Ballistics
Aklys Defense
Allen Engineering
Alpha Dog
AMTAC
AWC
B&T AG
Barrett
BCI Defense
Black Aces Tactical
Black Rain Ordinance
Bowers
CF Gunworks
CGS Group
CMMG
Coastal Gun
Creative Arms
Crux
Dakota Silencer
Daniel Defense
Dark Horse
Dead Air
DeGroat Tactical Armaments
Defiance Suppressors (Made for KRISS)
Elite Iron
Energetic Armament
Freedom Armory Machine Works
Gemtech
Griffin Armament
GSL Technology
Innovative Arms
Iron Ridge Guns
Jet Suppressors
KDM Cans
KGmade
Knight's Armament
Liberty
Leviathan Suppressors
LMT Defense
NG2 Defense
Mack Brothers
Mirage ULR
Operator Suppressor Systems / OSS
Paladin Armory
Piedmont Cartridge
PSD Rifleworks
PTP Tactical
Q
Rebel Silencers
Rex Silentium
Ruger
Rugged
S and H Arms
Shark
Sig Sauer
SilencerCo
Small Arms Technologies
Smith Enterprise, Inc
Spike's Tactical
SRT Arms
Steal Engineering Group / SEG
Suppressed Armament
Surefire
Tactical Innovations
Tactical Solutions
Texas Silencer Company
Thompson Machine
Thunder Beast Arms
Torrent Suppressors
Troy Industries
Witt Machine
Yankee Hill Machine
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