Wenliang Sun, 26, is scheduled to be deported after changing his appearance (pictured above before, left, and after) and buying a high-powered weapon, authorities said.  (UCF Police Department)

A University of Central Florida international student who abruptly changed his appearance and called his high-powered weapon a “sniper rifle” will be deported to China, an immigration judge has ruled.

Wenliang Sun, 26, violated the terms of his F-1 visa by not attending classes, police said — an offense that would normally lead to a slow process of notices and warnings.

But officials said he was fast-tracked for deportation because of a series of sudden “red flags,” including dyeing his hair blond, alarming his roommates, and buying a $70,000 Chevrolet Corvette in cash with his father’s money.

“In my country, that is a cheap car,” Sun told detectives investigating reports of his strange behavior, according to a police report.

One of the seized high-powered weapons and ammunition.  (UCF Police Department)

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School officials first reached out to cops Feb. 1 after reports from Sun’s friends and roommates that he had changed dramatically, according to local reports.

Sun legally owned a LWRC 300 Blackout rifle and ammunition, as well as a .308 Ruger Precision caliber rifle equipped with a bipod and scope, police said. He also had a hunting license.

But Sun’s predilection for calling his weapon a “sniper rifle” instead of a hunting rifle alarmed authorities, UCFPD Chief Richard Beary said, according to the Orlando Sentinel.

Authorities said the student referred to his weapon as a ‘sniper rifle’ rather than a hunting rifle.  (UCF Police Department)

So did Sun’s statement that he liked to “play with” and “look at” his weapons, according to a police report.

When Sun lost his non-immigrant visa status by not attending classes, he also lost his right to own weapons under federal law.

“Some of the [investigators] with a lot of years of experience … walked away and said, ‘We just saved a bunch of lives’”

- UCFPD Chief Richard Beary

An immigration judge ordered his deportation on Mar. 21, the Orlando Sentinel reported. He was being held Thursday at Baker County Detention Center in northern Florida.

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Authorities said that even though Sun did not make any threats or attempt to harm anyone, he still posed a major risk to student safety.

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Aurora, Co. movie theater gunman James Holmes dyed his hair bright orange before his killing spree, and also abruptly stopped attending his neuroscience program.

“Some of the [investigators] with a lot of years of experience … walked away and said, ‘we just saved a bunch of lives,’ ” Beary told the paper. “There’s no doubt about it.”