Just the crappy stock trigger and i have tried the center flag frames
Spyder shutter with macroline, 12v revy, 68 4500 psi tank, boo yaah elcd frame, lapco big shot barrel, flame drop forward
This thing shocked me when i first tried it out. it is so freakin fast. you can pick from 5 different modes(semi,auto,burst,turbo,safe). now i dont worry about going up against the $1200 guns because i can keep up with them and i know that i saved a lot more money then them.
the only things are the car charger that comes with and i have to put a bag over the frame when i play in the rain. the charger problem can be fixed by going to radio shack and getting the wall charger for 10 bucks. also i go through a lot more paint but oh well.
if you are tired of getting showered in paint by the better guns, get this and you can rain paint on them back for a little revenge.