| | Word | What it means |
|---|
| ACOG | Advanced Combat Optical Gunsight (Trijicon) |
| AK | Kalashnikov style rifle |
| AP | armor piercing |
| AR | AR15 style rifle |
| ARFCOM | AR15.com |
| ATF | Alcohol, Tobacco and Firearms (see BATFE) |
| AW | Assault Weapon |
| AWB | Assault Weapon Ban |
| Ball | ball ammo - see FMJ |
| BATFE | Bureau of Alcohol, Tobacco and Firearms |
| BB | Bullet Button (California) |
| BM | Bushmaster (www.bushmaster.com) |
| BNIB | Brand New in Box |
| BTT | Bump to Top |
| C&R | curio & relic |
| CCW | Concealed Carry Weapons permit |
| CMMG | AR Manufacturer (http://www.cmmginc.com/) |
| CMP | Civilian Marksmanship Program |
| CMT | Continental Machine and Tool Co (maker of Stag and supplier to many others) |
| DAO | Double Action Only |
| DD | Daniel Defense |
| DOJ | Department of Justice |
| DPMS | AR Manufacturer (http://www.dpmsinc.com/) |
| DROS | dealer's record of sale |
| FA | full auto |
| FCG | fire control group |
| FFL | Federal Firearms License (a dealer) |
| FMJ | full metal jacket ammo |
| FN/FNH | Fabrique Nationale (http://www.fnhusa.com/) |
| FS | for sale |
| FT | for trade |
| FTF | Face to Face |
| GPU | Gas Piston Upper |
| HP | hollow point ammo |
| HSC | handgun safety certificate (California) |
| KAC | Knight's Armament Company |
| LE | Law Enforcement |
| LEO | Law Enforcement Officer |
| LMT | Lewis Machine and Tool (http://www.lewismachine.net/) |
| Lower | Lower receiver of a rifle. Usually needs an FFL in order to buy. |
| LRT | LaRue Tactical |
| Mag | box magazine; ammunition feeding device (sometimes incorrectly referred to as a "clip") |
| MI | Midwest Industries |
| MMG | Monster Man Grip (California) |
| MOA | Minute of angle |
| NFA | National Firearms Act |
| NIB | New in Box |
| NLA | No Longer Available |
| NM | National Match. Typically means a gun or accessory that is designed for better accuracy. |
| OLL | off list lower (California) |
| OLR | off list rifle (California) |
| OLU | off list upper (like on a FAL) |
| PRI | Precision Reflex Inc. |
| RKBA | right to keep and bear arms |
| Romy G | a type of AK |
| RRA | Rock River Arms (http://www.rockriverarms.com/) |
| SA | semi auto |
| SAO | Single Action Only |
| SBR | short barreled rifle |
| SBS | Short Barreled Shotgun |
| SP | soft point ammo |
| SPF | sold, pending funds |
| SPR | special police rifle, special purpose rifle |
| SWS | Superior Weapons Systems (http://www.superiorweaponssystems.com/) |
| TTT | To the Top |
| Upper | Upper receiver of a rifle. Typically for the AR-15 family of rifles in which case no FFL is needed to buy. |
| WTB | want to buy |
| WTS | want to sell |
| YHM | Yankee Hill Machine |
