Removing, altering, etc., serial number on firearm; selling, giving, etc., or possessing firearm with removed, altered,etc., serial number; penalties. Makes it a Class 1 misdemeanorfor any person, firm, association, or corporation to knowingly possessany pistol, shotgun, rifle, machine gun, or any other firearm, except for an antique firearm, that has a serial number that has been removed, altered, changed, destroyed, or obliterated in any manner. The billalso makes it a Class 6 felony for any person, firm, association,or corporation to knowingly sell, give, or distribute any pistol,shotgun, rifle, machine gun, or any other firearm, except for an antiquefirearm, that has a serial number that has been removed, altered,changed, destroyed, or obliterated in any manner. Removing, altering, etc., serial number on firearm; selling, giving, etc., or possessing firearm with removed, altered, etc., serial number; penalties. Makes it a Class 1 misdemeanor for any person, firm, association, or corporation to knowingly possess any pistol, shotgun, rifle, machine gun, or any other firearm, except for an antique firearm, that has a serial number that has been removed, altered, changed, destroyed, or obliterated in any manner. The bill also makes it a Class 6 felony for any person, firm, association, or corporation to knowingly sell, give, or distribute any pistol, shotgun, rifle, machine gun, or any other firearm, except for an antique firearm, that has a serial number that has been removed, altered, changed, destroyed, or obliterated in any manner.