Trigger down! Firing the GSh-30-1 gun on a Su-30SM Posted on September 19, 2015September 19, 2015 by alert5 Related posts (Automatically Generated): Iran may have tested nuclear-weapon trigger Kazakhstan to buy Su-30SM Su-30SM makes maiden flight Irkut to supply 30 Su-30SM to Russian Air Force Irkut delivered two Su-30SM fighters to Kazakhstan Russian Knights tested Su-30SM at MAKS 2013