Amiral Charner (F 727) was a Commandant Rivière-class frigate of the French Navy.

She was later transferred to National Navy of Uruguay in 1991 and renamed Montevideo.

The main gun armament of the Commandant Rivière class consisted of three of the new French 100-millimetre (4 in) guns, with a single turret located forward and two turrets aft.

[1][2] These water-cooled automatic dual-purpose guns could fire a 13.5-kilogram (30 lb) shell at an effective range of 12,000 metres (39,000 ft) against surface targets and 6,000 m (20,000 ft) against aircraft at a rate of 60 rounds per minute.

[3] A quadruple 305 mm (12 in) anti-submarine mortar was fitted in 'B' position, aft of the forward gun and in front of the ship's superstructure,[1] capable of firing a 230 kg (510 lb) depth charge to 3,000 m (9,800 ft) or in the shore bombardment role, a 100 kg (220 lb) projectile to 6,000 m (20,000 ft).