The owner of a Portland brewery who was accused of repeatedly calling 911 to complain about the city's mayor and homeless situation admitted Wednesday to damaging a police car and possessing an illegal weapon.

Justin Mark Fay, 33, of Southeast Portland, pleaded guilty to one count each of unlawful possession of a short-barrel rifle and second-degree criminal mischief in Multnomah County Circuit Court. Judge Kenneth Walker sentenced him to two years of probation, to complete alcohol treatment and to pay nearly $1,500 in restitution on the latter charge.

As part of a plea deal, the Base Camp Brewing Company owner will be sentenced on the weapon charge, which is a class B felony, in February. If he successfully completes the alcohol treatment and complies with other conditions, the offense will be treated as a misdemeanor.

The rifle, an AR-15, is set for destruction, and Fay's other weapons and ammunition will be stored with his father, Multnomah County Deputy District Attorney Tara Gardner said.

On March 29, Fay called 911 seven times in 10 minutes to make his complaints about Portland's mayor and homelessness in the city, according to a probable cause affidavit filed after his arrest. A 911 call taker had given Fay the non-emergency number, but he continued to dial the emergency line.

Police responded to his home, and when the officers knocked on the door, they saw Fay coming down some stairs carrying an assault rifle, the affidavit says. They noticed that he smelled like alcohol.

Officers took the gun away from him, discovered it was loaded with a 30-round magazine and the safety was off. The barrel of the gun was 8 inches, according to the affidavit, half the length of what's required under state law.

Fay allegedly told police that he had more weapons inside and wanted to go grab another so he could kill one of the officers, the affidavit says. That detail was not discussed in court in Wednesday.

On his way to jail, Fay kicked the roof, divider and back rear window of a patrol car, ultimately breaking the window, records say.

Fay's attorney, Stephen Doyle, told the court the homeless issue was affecting his client's Southeast Portland business. Fay made a mistake by making repeated 911 calls, the defense attorney said.

When police contacted Fay, he was holding the rifle by its stock and not in a threatening manner, Doyle said.

The defense attorney told the court that he realized his client needed to undergo an alcohol evaluation. Fay immediately went into treatment, Doyle said, and has been sober since.

"This was an unfortunate event," Doyle told the court.

"He is very embarrassed about what happened."

-- Rebecca Woolington

503-294-4049; @rwoolington