Unemployed Josh Larkin, of Poppintree Crescent, Ballymun, also faces a connected charge for possessing cannabis at Sillogue Park on the same date

Both were arrested after the 9 millimetre handgun, ammunition, and a silencer were seized during a search under warrant in Mulhuddart.

It is understood the weapon was produced during an altercation between two groups of men on a housing estate.

Karl Donnelly, 34, with an address at Newmarket Yards, D8, was charged with firearms offences

He has since been charged, and is expected to appear before the Criminal Courts of Justice on Tuesday afternoon.

At the non-jury court on Wednesday, Anthony Walker was described as a “naturally vulnerable” man who had suffered child abuse and drug addiction in his younger years but “was not entirely innocent”

Ryan Kelly (25) was under surveillance as part of an investigation by the Garda National Drugs and Organised Crime Bureau.