This looks like an Abzats, but explosive.~Survivor that lives in a Metro
Grenade Machine Gun is a fully automatic belt feed explosive projectile launcher. The damage you can deal with it is great and you better save it up for really strong enemies.
Grenade Machine Gun can be found in places that have the Modern (), Army Weapons () icon.
Crafting & Upgrading
Grenade Machine Gun can not be crafted or upgraded.