Rachakonda Police Commissioner Mahesh Bhagwat said the duo was trying to sell two pistols, one of them made in Italy, for Rs 1 lakh each, along with a live cartridge.
The duo was identified as Putluri Eshwar Reddy and Tellagorlla Sunil Kumar, Saroornagar Police Inspector S Lingaiah said.
Reddy is suspected to have been involved in a few dacoity cases in Chhattisgarh, he said.