SAW beast! internally upgraded, perfectly shimmed, 365 at 24rps. Only serious buyers, I'm tired of y'alls crap lol aim piston and head with ball bearings, teardrop cut cylinder, o ring nozzle, ball bearing spring guide, h nubbed hopup in the classical m4 chamber, 6.03 barrel, 13:1 shs gears shimmed perfectly, matrix 3000 high torque motor, 115 spring, 8mm bearings not looking to trade, preference to local pick ups.