CZ SCORPION EVO 3 A1 HPA w/WOLVERINE INFERNO GEN. 2 HPA ENGINEFeatures Graditional EVO 3 A1 Styling and external build quality Utilizes Wolverine Inferno Gen2 HPA Engine Custom FCU board has empty magazine detection feature Rate of fire is adjustable ~15 30 Burst mode is programmable 2,3,5 or 7 20mm accessory rails for mounting optics and other accessories Battery not included FPS: 390 The CZ Scorpion EVO 3 A1 has been envisioned, developed and built by ASG, to bring the Airsoft player as close to the experience