A Garda investigation is underway following the shooting which took place shortly after midnight at a take away at the Edenmore Shopping Centre in Coolock.
A man armed with a handgun entered the property and demanded cash before shooting two staff members.
Both men - who are aged 38 and 28 - were removed to Beaumont Hospital where they are receiving treatment for their injuries which are not believed to life threatening.
In a follow up operation two men - aged 44 and 18 - were arrested and are being detained at Coolock and Raheny Garda Stations under the provisions of Section 30 - Offences Against the State Act 1939.
Gardaí are appealing for witnesses or any person with information to contact Coolock Garda Station on 01- 666 4200, the Garda Confidential Line 1800 666 111 or any Garda Station.
