1) Air gun 2) Air rifle 3) BB launcher 4) Bb shooter 5) Compression-utilizing weapon 6) Device for spraying paint 7) It operates by compression 8) Kind of arm 9) Nonlethal weapon 10) Pellet firer 11) Pellet projector 12) Pellet propeller 13) Pellet shooter 14) Pneumatic shooter 15) Pressure-based weapon 
Gun discharged by compressed air or gas