Modern Weapons

1980 to Present
5"/38 Mark 12
Pará Class (ex-USA Garcia class)
 4.5"/55 Mark 8 Mod 0
Barroso, Niteroi and Inhaúma Classes
 40 mm/70 Mark 3
Niteroi Class
 40 mm/70 OTO-Breda
Niteroi, Inhaúma, Greenhalgh (ex-UK Type 22) and Grajaú Classes and Patrol Ships
 20 mm Phalanx
Mattoso Maia Class (ex-USA Newport class)
 20 mm/85 GAM-BO1
Greenhalgh Class (Type 22)
 20 mm/70 Oerlikon
Grajaú Class
 12.7 mm HMG (USA Browning M2)
Many Ships

Historical Weapons

Battleship Main Guns

15"/45 Mark B
Riachuelo
 12"/45 Elswick Pattern L
Minas Gerais Class

Cruiser / Destroyer Main Guns and Battleship / Cruiser Secondary Guns

6"/50 QF EOC
Parnaiba and Barroso (1898) Classes
 6"/47 Mark 16
Barroso Class (ex-Brooklyn class)
 5"/38 Mark 12
Marcilio Dias and Acre Classes and ex-USA Destroyers
 5"/25 Mark 10
Barroso Class (ex-USA Brooklyn class)
 4.7"/50 EOC
Minas Gerais Class
 4.7"/50 Armstrong
Barroso (1898) Class
 4.7"/45 Ansaldo
Humaita
 4.7"/40 Elswick
Pernambuco
 4"/45 QF Vickers-Armstrong Mark N
Carioca Class
 4"/40 QF Mark IV
Maranhao
 100 mm/47 Odero-Terni
Tamoio Class

Smaller Caliber, Anti-Aircraft and "Dynamite" Guns

3"/50RF Marks 27, 33 and 34
ex-USA Destroyers
 6-pdr Maxim-Nordenfelt
N/A
 40 mm/56 Bofors Mark 1, Mark 2 and M1
ex-USA Warships
 20 mm/70 Oerlikon Marks 2, 3 and 4
ex-USA Warships
 Zalinsky "Dynamite" Gun
Nictheroy