- 134a: Normal pressure gas for everyday use
- AEG: Automatic Electric Gun
- AEP: Automatic Electric Pistol
- BB: Ball bearing ammo (plastic only for airsoft)
- BFG: Blank firing grenade
- Chrono: Chronograph - device to measure muzzle velocity
- Comms: Communications - usually PMR for airsoft
- CQB: Close quarter battle
- EBB: Electric Blowback
- FIBUA: Fighting in built up areas
- Flashbang: Grenade used to distract the enemy
- FPS: Feet Per Second - the unit of measurement for muzzle velocity
- Frag: Fragmentation grenade
- GBB: Gas Blowback
- Green Gas: High pressure gas for cold weather use - more powerful than 134a
- Hicap: High Capacity Magazine (200-600 Rounds) usually uses clockwork mechanism
- HMG: Heavy Machine Gun
- Hop-Up: Mechanism that backspins bb's when fired, increasing range and accuracy
- LMG: Light Machine Gun
- Locap/Standard: Standard Capacity Magazine (50-70 Rounds)
- LSW: Light Support Weapon
- Mag: Magazine to hold ammunition
- Midcap: Medium Capacity Magazine (100-150 Rounds)
- Milsim: Military Simulation
- NBB: Non Blowback
- Noob: Derogatory term for those 'special' players......
- OpFor: Opposing Forces - the other team
- PMR: Private mobile radio - the most common type in airsoft
- RAS: Rail Adapter System - also known as RIS
- Realcap: Real Capacity Magazine (15-30 Rounds)
- Red Gas: Very high pressure gas - more powerful than green
- RIF: Realistic imitation firearm
- RIS: Rail Interface System - used to attach accessories to guns
- Round: 1 Shot
- SMG: Sub Machine Gun
- Springer: Manual cocking spring powered gun
- Tracer: Glowing ammunition
- Tracer Unit: Suppressor-like unit attached to muzzle to illuminate glowing ammo