Space- fire E- eject magazine R- chamber round Z- reload magazine V- safety/fully auto mode Click magazine- load magazine (20 rounds) If your gun won't fire: -chamber a round -make sure magazine is loaded -make sure safety is off There is also a suppressor and a laser sight for this gun. For the suppressor, drag it to the muzzle to use it. To use the sight, drag it over the rail on the gun.
sounds from Half-Life 2 and reciever