The Dual Automatic Rifle was designed by Salomón Braga Lozo from SIMA Electronica, a division of the state-owned SIMA shipyards, based in the port of Callao. It is a proposal centered around the cartridge NATO 5.56x45mm that offers less recoil, less weight and volume while at the same time giving precision, adequate range and ergonomy that is to be coupled with a "pump-action" type 40mm Grenade Launcher

40 mm grenade

The 40mm grenade is a military grenade caliber for grenade launchers in service with many armed forces. There are two main types in service: the 40×46mm, which is a low-velocity round used in hand-held grenade launchers; and the high-velocity 40×53mm, used in mounted and crew-served weapons. The...

 in a single package. It is of the "Bullpup

Bullpup

Bullpups are firearm configurations in which the action is located behind the trigger group and alongside the shooter's face, so there is no wasted space for the buttstock as in conventional designs. This permits a shorter firearm length for the same barrel length for improved maneuverability, and...

" configuration; being a compact weapon can be easily used by armor crews, as a back-up weapon.