"Air" guns are not your daddy's Daisy Red Riders bb guns anymore. I watch a video of one a while back which shot a .45 bullet that went clean through a large boar from shoulder to shoulder and dropped him within five yards. If you shot one of those and it hit yourself in your eye like your mommy warned you not to do you would be dead.

Air rifles date back to before our Revolutionary War when if the British caught you with one in your possession you would be hanged. In some areas and countries "Air rifles" are treated as real gun in all respects.