International organisations have accused Egyptian President Abdel Fattah al-Sisi of running an ultra-authoritarian and repressive regime since he deposed his democratically elected Islamist predecessor Mohamed Morsi in 2013.
Amnesty said this flouted an EU-wide suspension of arms transfers to Egypt imposed after hundreds of protesters were killed in what it called a "show of grossly excessive force" in August 2013.
The London-based human rights watchdog said it feared the suspension could be scrapped, even though it was insufficient.
"The EU should immediately impose an embargo on all transfers of the types of arms and equipment being used by Egypt to commit serious human rights violations," said Brian Wood, head of arms control and human rights at Amnesty.
The Egyptian government dismissed the report, with Foreign Minister Sameh Shoukry saying Amnesty had a habit of "making exaggerated accusations". "I'm sure all the equipment provided to Egypt has helped to strengthen its stability in the fight against terrorist threats," he said at a news conference.