Salim Khan, aged around 34 years, was held by a Special Operation Group team of the state police at Karauli bus stand, DIG SOG Vishal Bansal said here.
"Khan was involved in the arms smuggling in Rajasthan, Uttar Pradesh, Madhya Pradesh", he said.
Bansal said that two of the ten weapons seized were fitted with silencers.
The accused is being interrogated, the police official said.