A man in his late twenties is in Garda custody following the seizure of cannabis herb, with a street value of around €5,000, from a house in the south inner city area of Dublin on Tuesday.
A cannabis plant and cultivation equipment were also recovered along with a stun gun during the raid on the property in McCarthy Street.
A follow-up search was conducted at New Street in the city on Wednesday and a number of rounds of ammunition were recovered.
A second male in his early fifties was arrested.
Both suspects are being held at Kevin Street Garda Station under Section 2 of the Drug Trafficking Act.