i'm twiddling my thumbs waiting for a program to finish running and they keep popping into my head, so...
SBR = short barreled rifle
SPR = special purpose rifle
SBS = short barrelled shotgun
FCG = fire control group (trigger, etc.)
FMJ = full metal jacket
JHP = jacketed hollow point
SA = single action (or (springfield armory)
DA = double action (or district attorney....or dumb ass
)
DAO = double action only
SA/DA = single action/double action
CMT = continental machine & tool
COM = center of mass (or common object model
)
VFG = vertical foregrip
JFPO = jews for the protection of firearms owneeship (a great organization, btw)
GOA = gun owners of america
NRA = national rifle association
PAFOA = of course, PA firearms owner's association (aka, poofa in some circles)
aka = also known as
ACSL = allegheny county sportsmens league (another great organization that does a lot for PA gun rights)
PMSC = pitcairn monroeville sportsmens club (a really cool gun club near pittsburgh of which many of us are members and at which the western PA PAFOA group shoots---aka the poofa shoots--are held.)