This is the catch all law that frequently gets used in a situation ( see sub section g). An over zealous LEO can make it pretty onerous if they want to. I would encourage all of you to use the utmost discretion when handling replicas in public or in the sight of . There are plenty of knuckle heads who brandish replicas in vehicles. In my career I responded to many " man with a gun " calls only to find out it was an airsoft gun. Came close to popping 2 on traffic stops.
Oregon Revised Statutes Chapter 166
166.025 Disorderly conduct in the second degree. (1) A person commits the crime of disorderly conduct in the second degree if, with intent to cause public inconvenience, annoyance or alarm, or recklessly creating a risk thereof, the person:
(a) Engages in fighting or in violent, tumultuous or threatening behavior;
(b) Makes unreasonable noise;
(c) Disturbs any lawful assembly of persons without lawful authority;
(d) Obstructs vehicular or pedestrian traffic on a public way;
(e) Congregates with other persons in a public place and refuses to comply with a lawful order of the police to disperse;
(f) Initiates or circulates a report, knowing it to be false, concerning an alleged or impending fire, explosion, crime, catastrophe or other emergency; or
(g) Creates a hazardous or physically offensive condition by any act which the person is not licensed or privileged to do.
(2) Disorderly conduct in the second degree is a Class B misdemeanor. [1971 c.743 §220; 1983 c.546 §5; 2001 c.104 §55; 2005 c.631 §1]
Even a fool is thought wise if he keeps silent,
and discerning if he holds his tongue.