Two men have appeared at a special sitting of the District Court in Limerick as part of the investigation into the seizure of drugs, arms and ammunition in the city on Thursday night.
One man has been remanded in custody, while a second has been released on bail.
A third man arrested as part of the same operation has been released without charge.
Aidan Radmall, 35, of 4 Clonile, Old Cratloe Road in Limerick faced 11 charges - five related to possession of diamorphine, commonly known as heroin, and amphetamines for sale or supply at Cecil Street in Limerick on 29 June.
He also faced four charges in relation to possession of two pistols, a sub-machine gun and a stun gun for an unlawful purpose, and two charges of having ammunition.
A second man, Philip Collopy of 45 St Munchin's Street, St Mary's Park in Limerick was charged with obstructing gardaí as they carried out a number of follow-up searches in the St Mary's Park estate yesterday.
Mr Radmall made no application for bail and was remanded in custody to appear at the District Court in Limerick on Thursday.
Philip Collopy was released on bail, but he must reside at an address in St Mary’s Park and observe a nightly curfew until he appears in court on 27 July.