Help - gunboat weapon

[Shaiakan]

Hey yo,
If anybody could help me out, please do. I just bought a civilian gunboat (Condor) and try to arms up - but not sure where can i buy gunboat weapons. I tried wiki, and looks like there is no location for civilian guns. So if there is any, please share with me - or advise me please, which other type of weaponry should i mount on it.

[Alexander]

Hello! Try Barrier Gate in Coronado.

[Epo]

If I recall it well, Baltimore Shipyard in NY should sell some. I'm not 100% sure tho

[Shaiakan]

Thank you guys!