CGS Sonar Bangla is a Sobuj Bangla-class[5][4] inshore patrol vessel, which has served the Bangladesh Coast Guard since 2020.

CGS Sonar Bangla is 50.4 metres (165 ft) long, 7.5 metres (25 ft) wide and 4.1 metres (13 ft) high.

The vessel has a displacement of 297 tonnes and a top speed of 23 knots (43 km/h).

Her complement is 45 persons and can carry out missions lasting up to seven days at a time.

The ship is armed with two Oerlikon KBA 25 mm guns, one forward and one backward, and two heavy machine guns.