The Rikers Island inmate who was caught on video pummeling a jail guard was allowed to go free on bail, officials said Sunday.

The vicious beatdown didn’t stop Rickeem Parker — who records indicate is between 17 and 18 years old — from waltzing out of the Robert N. Davoren Center on Oct. 12, according to the Department of Correction.

He had been arrested on Sept. 19 for assault and harassment, and bail was set at $1,500. It’s unclear if Parker or someone else put the money up for his release.

“Given the high recidivism rates, it’s likely he will be in our custody again,” a DOC source said.

Video of the Oct. 5 attack emerged Sunday, sparking calls for action from the Correction Officers’ Benevolent Association.

“This video and others like it are another reminder of why the officer-to-inmate ratio in the NYC DOC needs to change,” said COBA president Elias Husamudeen.

He likened the assault to a string of videos that have recently surfaced depicting civilians disrespecting cops, including one man who told a cop in a precinct station house to “suck my d- -k.”

Additional reporting by Tina Moore