The Brandt 60 mm long-range gun-mortar is a breech loading mortar capable of firing on a flat trajectory.

[2] The firing pin is automatically withdrawn when the breech is unlocked, reducing the potential for misfire.

[2] The LR gun-mortar was also tested as a deck-mounted support weapon for maritime patrol craft such as the VCSM.

[2] The standard LR high-explosive projectile possessed a fuze which detonated at any angle of impact.

[2] Brandt claimed that its explosive charge possessed an efficiency comparable to that of an 81 mm (3.2 in) mortar bomb.