The 16 improvised explosive devices that “MAGA bomber” Cesar Sayoc sent to prominent Democrats during the run-up to the 2018 primary elections apparently were duds, according to an FBI analysis made public on Tuesday.

“As submitted, the devices would not have functioned as a result of their design,” said FBI forensic examiners in a 107-page report that was submitted in January and that a federal judge in Manhattan unsealed on Tuesday.

The report states that the devices were loaded with glass fragments, which could have maximized damage around the devices if they had gone off. But the report states that the devices had non-functioning fuse systems, which lacked the “proper components.”

Examiners could not determine if the non-functional fuse systems were the “result of poor design or the intent of the builder,” the report states.

In March, Sayoc pleaded guilty to 65 counts, including 16 counts of using a weapon of mass destruction. He has written letters to District Judge Jed Rakoff of Manhattan federal court in which he has said that he never intended to hurt anyone with the pipe bombs.

Sayoc is scheduled to be sentenced on Sept. 12. Prosecutors have argued that he should get life in prison.

When he was arrested, he was living in Florida in a van plastered with pro-Trump images and messages, as well as images showing red crosshairs over former Presidents Obama and Clinton.

Sayoc, who once did a stint as an exotic dancer, has argued through attorneys that 40 years of steroid use has taken a toll on his mental health.