15-year-old Saddam was grazing his cattle near the border when the BSF opened fire on him
German passport holders Aminul Islam and Monir Ben Ali declared the nine seized pistols as toys, Customs Commissioner Lutfor Rahman told bdnews24.com.
"The two were detained based on a tip-off," he said.
The two men landed in Dhaka on Tuesday from Dubai by an Emirates flight.
Customs officials said the firearms were packed in a box and had been declared as toys.
"Experts from RAB (Rapid Action Battalion) confirmed they were not toys," said Customs Assistant Commissioner HM Ahsanul Kabir.