The National Drug Law Enforcement Agency (NDLEA) detained 12 pump-action rifles and 374 bullets in Kogi on Friday.
State Commander Abdulkadir made the disclosure to the News Agency of Nigeria (NAN) Abdullahi-Fakai.
Two persons have been taken into custody in connection with the firearms and ammunition.
According to Abdullahi-Fakai, they were found at an NDLEA checkpoint on the Okene-Lokoja-Abuja highway.
The suspects, Sagir Isiyaka (40) and Bello Shehu Usman (42), were traveling in a J5 Boxer Bus from Onitsha to Abuja.
“When asked about how they came about such dangerous arms and ammunition, they couldn’t give any cogent reason”, Abdullahi-Fakai said.
The official added that the case has been transferred to the Police Command in Kogi for further investigation.