Abbreviation?

[tjhjunk]

Where can I find a glossary of the abbreviations used on this site?

Thanks. Tim

[Robb Jensen]

There isn't one but here are some (I'm sure I've missed many):

LMT = Lewis Machine & Tool
BCG = bolt carrier group
CH = charging handle
RRA = Rock River Arms
SOPMOD = Special Operations Peculiar Modification
SOCOM = Special Operations Command
NFA = National Firearms Act
ATF = Alcohol Tobacco and Firearms (also BATFE, Bureau of Alcohol Tobacco Firearms and Explosives)
SPR = special purpose rifle
DMR = designated marksman rifle (USMC)
SAMR = Squad Advanced Marksman Rifle (USMC)
GB = gas block
FSB = front sight base (it is the gas block on a stock AR)
MPI = magnetic particle inspected
FS = flash suppressor (i.e. A2 'compensator', i.e. 'birdcage')
BUIS = back up instant sight
COWITNESS = meaning you can see the reticle and irons at the same time (there is absolute cowitness, and typically lower 1/3 cowitness most people prefer the 1/3)
HC = hard chrome
RE = receiver extension (aka buffer tube)
POA/POI = point of aim, point of impact
FDE = flat dark earth (a shade of the color brown)
CB = chrome bore or coyote brown
OD = olive drab
FG = foliage green
CQB = close quarters battle
CS = chrome silicon
BCM = Bravo Company Manufacturing
MIAD = Magpuls pistol grip stands for Mission Adaptable Grip
CTR = Magpuls 'compact type restricted' stock
UBR = Magpuls 'utility battle rifle' stock
PRS = Magpuls 'precision rifle/sniper' stock
PMAG = Magpuls polymer magazine