(1) Except where ORS Ch. 166 provides to the contrary, a person commits the crime of unlawful possession of a firearm if the person knowingly:

(2) This section does not prohibit any citizen of the United States over the age of 18 who resides in or is temporarily sojourning within this state, and who is not within the excepted classes prescribed by ORS 166.270, from owning, possessing or keeping within the person's place of residence or place of business any pistol, revolver or other firearm capable of being concealed upon the person, and no permit or license to purchase, own, possess or keep any such firearm at the person's place of residence or place of business is required of any such citizen. As used in this subsection, "residence" includes a recreational vessel or recreational vehicle while used, for whatever period of time, as residential quarters.

(3) Firearms carried openly in belt holsters are not concealed within the meaning of this section.

(4) “Firearm” means a weapon, by whatever name known, which is designed to expel a projectile by the action of powder and which is readily capable of use as a weapon.

(5) “Handgun” means any pistol or revolver using a fixed cartridge containing a propellant charge, primer and projectile, and designed to be aimed or fired otherwise than from the shoulder.

(6) Unlawful possession of a firearm is a crime punishable as prescribed by Section 5.990(1).