Pasuquin Mayor Ferdinand Aguinaldo and Vice Mayor Pedro Rex Aguinaldo have been released from jail after posting bail.
The Ilocos Norte politikos were earlier arrested for illegal possession of firearms.
Both politikos firearms remained with the police.
Illegal firearms and ammunition were found in homes of the Aguinaldos during simultaneous raids last May 12.
The home of former Pasuquin mayor Peter Felix Aguinaldo was also raided on the same day but he showed a valid gun license.