A
- ACP: Automatic Colt Pistol
- ATF: (see BAFTE)
- ATFE: (see BAFTE)
- AUTO: Automatic
B
- BAFTE: Bureau of Alcohol, Tobacco, Firearms, and Explosives
C
- Cal: Caliber
- CalGuns: CalGuns Foundation
- CCL: Concealed Carry License
- CCRKBR: Citizens Committee for the Right to Keep and Bear Arms
- CCW: Concealed Carry Weapon
- CFLC: California Firearms Licensee Check System
D
- DA: double action
F
- FFL: Federal Firearms License
G
- Ga: Gauge
- GCA: Gun Control Act of 1968 (see more info)
- GST: Gun Show Trader
L
- LC: Long Colt
- LR: Long Rifle
M
- M&P: Military & Police
- Mag: Magazine
- Mag: Magnum
- mm: millimeter
N
- NRA: National Rifle Association
P
- +P: plus pressure ammunition.
- Para: Parabellum
S
- S&W: Smith & Wesson
- SA: single action
- SAF: Second Amendment Foundation
- Sig: Schweizerische Industrie Gesellschaft aka Sig Sauer
T
- TMJ: Total Metal Jacket