A
A-TACS - Advanced TActical Concealment System
ABU - Airman Battle Uniform
ACC - Command Arms ACC
ACH - Advanced Combat Helmet
ACOG - Advanced Combat Optical Gunsight
ACP - Automatic Colt Pistol
ACR - Adaptive Combat Rifle / Advanced Combat Rifle
ACS - Adaptable Carbine/Storage
ACU - Army Combat Uniform
AFG - Angled Fore Grip
AFSOC - Air Force Special Operations Command
AG36 - AnbauGranatwerfer 36 (Attachable Grenade Launcher 36) 
ALICE - All-purpose Lightweight Individual Carrying Equipment
AK - Автомат Калашникова (Automatic Rifle Kalashnikov) 
AMAP - Agilite Modular Assault Pack
ANVIS - Aviator Night VISion
AOR - Area Of Responsibility
APB - Автоматический Пистолет Бесшумный (Automatic pistol silent)
APS - Автоматический Пистолет Стечкина (Automatic pistol Stechkin)
ARM - American Rheinmetall Munitions
AS Val - Автомат Специальный Вал (Special Automatic Rifle)
ASR - Advanced Sniper Rifle
ASU - Airport Security Unit 
ATPIAL - Advanced Target Pointer/ Illuminator/ Aiming Laser
AU - Arid Urban
AUG - Armee-Universal-Gewehr (Army Universal Rifle) 
AVS - Adaptive Vest System
AW - Arctic Warfare
AWF - Arctic Warfare Folding
AWM - Advanced Warfighter Magazines
AWP - Arctic Warfare Police
AWS - Arctic Warfare Suppressed
B
BAD - Battery Assist Device
BCM - Bravo Company Manufacturing
BDU - Battle Dress Uniform
BLK - BLacK
BNVD - Binocular Night Vision Device
BORTAC - BORder patrol TACtical unit
BSA - the Birmingham Small Arms company limited 
BTV-EL - Bottom and Top Venting system - Extended Length
BUIS - Back Up Iron Sight
C
C - Carbine
G36C - Commando
CAA - Command Arms Accessories
CADPAT - CAnadian Disruptive PATtern 
CAG - Combat Applications Group
C.A.R. - Colt Automatic Rifle
C-A-T - Combat Application Tourniquet
CAPF - 中国人民武装警察部隊 (Chinese people’s Armed Police Force) 
CBRN - Chemical, Biological, Radiological and Nuclear
CCT - Combat Control Team/Combat Controller
CIA - Central Intelligence Agency
CIRAS - Combat Integrated Releasable Armor System
CNSWG - Commander Naval Special Warfare Group
CPC - Cage Plate Carrier
CRW - Counter Revolutionary Warfare
CSASS - Compact Semi-Automatic Sniper System
CTR - Compact / Type Restricted
CTRU - Counter Terrorism Response Unit
CTS - Combined Tactical Systems
CUEPAT - Canadian Urban Environment PATtern
D
DA - Direct Action
DAK - Double Action Kellermann
DCS - Digital Concealment Systems
DCU - Desert Camouflage Uniform
DEA - Drug Enforcement Administration
DEVGRU - DEVelopment GRoUp
DM51 - Deutsches Modell 51 (German Model 51 [ Hand Grenade ])
DMR - Designated Marksman Rifle
DOA - Di-Optic Aperture
DPM - Disruptive Pattern Material
DPMS - Defense Procurement Manufacturing Services
E
EGLM - Enhanced Grenade Launcher Module
ELCAN - Ernst Leitz CANada
EMAG - Export MAGazine
EMR - Enhanced Marksman Rifle
EOD - Explosive Ordnance Disposal
EODMU - Explosive Ordnance Disposal Mobile Unit
ESR - Enhanced Sniper Rifle
ESU - Emergency Service Unit
EVG - Ergonomic Vertical Grip
F
FAL - Fusil Automatique Léger (Light Automatic Rifle) 
FAMAS - Fusil d’Assaut de la Manufacture d’Armes de Saint-Étienne (Assault Rifle from the Saint-Étienne Weapon Factory) 
FBI - Federal Bureau of Investigation
FBR - Free Burma Rangers 
FCS - Future Combat Systems
FDE - Flat Dark Earth
FG - Foliage Green
FN Herstal - Fabrique Nationale de Herstal
FROG - Fire Resistant Organizational Gear
FSB - Федеральная Служба Безопасности Российской Федерации (Federal Security Service of the Russian Federation)
FSIN - Федеральная Служба Исполнения Наказаний (Federal Penitentiary Service)
G
G - Gewehr (Rifle) (as of G3 or G36)
GEK - GendarmerieEinsatzKommando (Constabulary Deployment Command)
GIGN - Groupe d’Intervention de la Gendarmerie Nationale (National Gendarmerie Intervention Group)
GM-94 - Гранатомет Магазинный 94 (Grenade Launcher 94)
GP-25 - Гранатомет Подствольный 25 (Underbarrel Grenade Launcher 25)
GPNVG - Ground Panoramic Night Vision Goggle
GSG-9 - GrenzSchutzGruppe-9 (Border Protection Group-9)
GTL - GLOCK Tactical Lights
H
HALO - High Altitude Low Opening
HAMR - High Accuracy Multi-Range Riflescope
HBRS - High Bench Rest Swivel
HIU - Head set Interface Unit
HK - Heckler & Koch
HLM - Handheld Laser Marker
HRT - Hostage Rescue Team
HSGI - High Speed Gear Inc.
I
IAR - Infantry Automatic Rifle
IDF - Israel Defense Forces 
IdZ - Infanterist der Zukunft (Infantryman of the future)
IFAK - Individual First Aid Kit
IMI - Israel Military Industries
IPIM - Integrated Pointer Illuminator Module
ISOF - Iraqi Special Operations Forces 
ISP - International Safety Products
ISPC - Improved Scalable Plate Carrier
IWI - Israel Weapon Industries
J
JPC - Jumpable Plate Carrier
JSOC - Joint Special Operations Command
JTAC - Joint Terminal Attack Controller
JTF - Joint Task Force
K
MP5K - Kurz (short)
K-9 - Canine
KAC - Knight’s Armament Company
KEDR - Конструкция Евгения ДРагунова (Design of Evgeny Dragunov)
KSK - Kommando Spezialkräfte (Special Forces)
KSM - Kommando Spezialkräfte Marine (Special Forces Navy)
L
LASD - Los Angeles county Sheriff’s Department
LBT - London Bridge Trading company
LLM - Laser-Licht-Modul (Laser Light Module)
LMG - Light Machine Gun
LPOP - Listening Post Observation Post
LRRP - Long-Range Reconnaissance Patrol
LSW - Light Support Weapon
LTD - Laser Target Designator
LTP - Lightweight, Tactical, Polymer
LV - Low Velocity
LVAW - Low-Visibility Assault Weapon
LVOA - Low-Visibility Operations Application
LWH - LightWeight Helmet
M
M870 - Model 870
M-LOK - Modular LOcK
MAAWS - Multi-role Anti-armor Anti-personnel Weapon System
MACV - Military Assistance Command, Vietnam
MARPAT- MARine PATtern
MARS - Multi-purpose Aiming Reflex Sight
MARSOC - United States MARine Corps Forces Special Operations Command
MAS - Maritime Assault Suit
MATECH - Military Advanced TECHnology
MBITR - MultiBand Inter/Intra Team Radio
MBS - Modular Belt System
MBUS - Magpul Back-Up Sights
MCCUU - Marine Corps Combat Utility Uniform
MCFR - Marine Corps Firing Range
Modular Carry System - MCS
MEB - Marine Expeditionary Brigade
MEU - Marine Expeditionary Unit
MG - MaschinenGewehr (Machine Gun)
MGL - Multiple Grenade Launcher 
MHRS - Mission Helmet Recording System
MICH - Modular Integrated Communications Helmet
MIO - Maritime Interdiction Operations
MK - MarK
MLCS - Maritime Load Carriage System
MNVD - Monocular Night Vision Device
MOE - Magpul Original Equipment
MOLLE - MOdular Lightweight Load-carrying Equipment
MP - Military Police / MilitärPolizei
MP - MaschinenPistole (Submachine gun) (as of MP7 or MP5)
MPCR - Muti-Purpose Chest Rig
MPS - Metropolitan Police Service
MRAD - Multi-Role Adaptive Design
MSO - Maritime Security Operations
MSOB - Marine Special Operations Battalion
MSRT - Maritime Security Response Team
MTP - Multi-Terrain Pattern
MVD - Министерство внутренних дел (Ministry of Internal Affairs)
N
NAVSPECWARCOM - NAVal SPECial WARfare COMmand
NAVSPECWARDEVGRU - NAVal SPECial WARfare DEVelopment GRoUp
NCPC - Navy CAGE Plate Carrier
NGAL - Next Generation Aiming Laser
NSW - Naval Special Warfare
NSWDG - Naval Special Warfare Development Group
NVG - Night Vision Goggles
O
OD - Olive Drab
ODA - Operational Detachment Alpha
OICW - Objective Individual Combat Weapon / Objective Infantry Combat Weapon
OMON - Отряд Мобильный Особого Назначения (Special Purpose Police Unit)
OR - Outdoor Research
P
P - Pistole (Pistol) (as of P7 or P8)
PAP - 中国人民武装警察部隊 (Chinese People’s Armed Police Force)
PASGT - Personnel Armor System for Ground Troops
PEPR - Proper Eye Position Ready
PDW - Personal Defence Weapon
PJ - Pararescue Jumpers
PMAG - Polymer MAGazine
PMC - Private Military Contractor
POD - Prone Optimization Device
PSS - Пистолет Самозарядный Специальный (Special self-loading pistol)
PTT - Push-To-Talk
PUK - Police Utility Knife
Q
QBZ-95 - 95式自动步枪 (Type 95 Automatic Rifle)
QGF - ??? (Light Steel Composite[Helmet])
QSZ-92 - 92式手枪 (Type 92 Handgun)
R
RAHG - Remington Accessory HandGuard
RAID - Recherche, Assistance, Intervention, Dissuasion (Search, Assistance, Intervention, Deterrence)
RAMP - Rapid Access Medical Pouch
RAS - Rail Accessory System
RAV - Releasable Assault Vest
RIS - Rail Interface System
RISR - Reciprocating Inline Stock Riser
RIVRON - RIVerine squadRON
RG - Ranger Green
RGD-5 - РучнаЯ Граната Дистанционная-5 (Hand Grenade Remote-5)
RGN - Ручная Граната Наступательная (Hand Grenade Offensive)
RGO - Ручная Граната Оборонительная (Hand Grenade Defensive)
RMR - Ruggedized Miniature Reflex
RPIMa - Régiment de Parachutistes d’Infanterie de Marine (Marine Infantry Parachute Regiment)
RPG-7 - Ручной Противотанковый Гранатомет 7 (Hand-held anti-tank grenade launcher-7)
RRRC - Ranger Regimental Reconnaissance Company
RSAF - Royal Small Arms Factory / Republic of Singapore Air Force 
RTO - Radiotelephone Operator
RVG - Rail Vertical Grip
S
SA80 - Small Arms for the 80s
SAD - Special Activities Division
SADF - South African Defence Force
SAI - Salient Arms International
SAPR - Stock Attachment Precision Rifle
SAR-21 - Singapore Assault Rifle - 21st Century
SAS - Special Air Service
SASR - Special Air Service Regiment 
SAT - 特殊急襲部隊 (Special Assault Team) 
SAW - Squad Automatic Weapon
SBS - Special Boat Service
SBT - Special Boat Team
SC&O - Specialist Crime & Operations
SCAR - Special operations forces Combat Assault Rifle
SD - SchallDämpfer (Silencer)
SDMR - Squad Designated Marksman Rifle
SDO - Squad automatic-weapon Day Optic
SDU - Special Duties Unit
SDV - SEAL Delivery Vehicle
SDVT - SEAL Delivery Vehicle Team
SEAL - SEa, Air and Land
SEK - Spezialeinsatzkommando (Special Operations Command)
SFC - Sergeant First Class
SFG - Special Forces Group
SFO - Specialist Firearms Officer
SFOD-D - Special Forces Operational Detachment-Delta
SIG - Schweizerische Industrie Gesellschaft (Swiss Industrial Company) 
SLR - Self-Loading Rifle
SMAW - Shoulder-launched Multipurpose Assault Weapon
SMG - Submachine Gun
SMU - Special Missions Unit
SOAR - Special Operations Aviation Regiment
SOBR - Специальный Отряд Быстрого Реагирования (Special Rapid Response Unit)
SOD - Special Operation Department 
SOG - Special Operations Group
SOPMOD - Special Operations Peculiar MODification
SPAS-12 - Special/Sporting Purpose Automatic Shotgun-12
SPC - Scalable Plate Carrier
SRS - Sealed Reflex Sight
SSR - Sniper Support Rifle
STANAG - STANdardization AGreement
STR - Storage/Type Restricted
STS - Special Tactics Squadron
SURPAT - SURvival PATtern
SUSAT - Sight Unit Small Arms Trilux
SVD - Снайперская Винтовка системы Драгунова (Sniper Rifle, System of Dragunov)
SWAT - Special Weapons And Tactics
T
TACAM - Tactical Assault CAMouflage
TACP - Tactical Air Control Party
TFSS - Tactical Flotation Support System
TNVC - Tactical Night Vision Company
U
UBR - Utility/Battle Rifle
UDT - Underwater Demolition Teams
UMP - Universale MaschinenPistole (Universal Submachine Gun)
USCG - United States Coast Guard
USMC - United States Marine Corps
USP - Universelle SelbstladePistole (Universal Self-Loading Pistol)
USSOCOM - US Special Operations COMmand
USSS - United States Secret Service
V
VBSS - Visit, Board, Search and Seizure
VSS - Винтовка Снайперская Специальная (Special Sniper Rifle)
W
WML - Weapon Mounted Lights
X
Y
Z
ZUZ - Zentrale Unterstützungsgruppe Zoll (Central Customs Support Group)
