I was messin around with my gun and i took the sides of the grip off of my EXT pro and this ball or spring popped out of the safety and now if i put the safety on and pull the trigger, it turns the safety off....
not really fermilier with mech piranha frames. But take you saftey out and how a saftey works is it goes behind the trigger and wont let you pull it and then theres a milled out spot on it for the trigger to move. so just take the saftey out and rig up something like shove a piece of plastic behind the trigger and take it out when you dont want a saftey on.