Azodin Blitz Evo Limited Edition Paintball Gun - Alien First and foremost is a ball-bearing sling trigger for fluid, flawless fire capability. A low-profile on/off ASA comes standard The Zen 3 circuit board includes modes of fire including updated PSP ramping rates and an all full-auto mode Rocksteady regulator features a one-piece reg seat with a standard deviation of +/- 5 fps universal Twist Lock 2 feedneck allows for instant adaptation to any size hopper