Capable of throwing high quality grenades at a rate of 320 grenades per minute over a distance of 2 000m, the High Explosive Dual Purpose (HEDP) round fired from the GLI 40 AGL provides anti-personnel shrapnel as well as a penetration capability of 50mm of Amour plate even at a distance of 2 000m. The GLI 40 is designed with Safety as the prime objective, therefore the Barrel and Breech locks together while the shot is fired and the barrel is only released when the Breech reaches the rear buffer.

It also has the capability of ejecting the last spent Cartridge case. The GLI 40 can effectively engage indirect targets with the use of an electronic indirect sight and forward observer making it suitable for use in very hilly areas. Its cocking mechanism enables the User to cock the weapon in confined spaces. The GLI 40 can be deployed off a tri-pod or vehicle mount.