Electronic Features: Tadao Board included! Quick Dial thumb dial knob for easy access to programming and fire modes LED display screen Break beam eyes with manual on/off Completely programmable functions and adjustments including: Debounce, Cycle percentage filter, Anti-mechanical bounce, Ball in Place delay, Max rate of Fire, Ramp start, Breakout Gas type: Anti-siphon CO2 or Nitrogen/Compressed air only! Mechanical Features: Closed bolt accuracy Ergonomic grip frame assembly High speed MP5 ram assembly with integrated TRV (Turbo Relief Valves) Redesigned front pneumatics assembly eliminating low pressure hoses Dual soft rubber ball stops Gasket sealed front block Macroline quick release hose Internal pump rod Adjustable low and high pressure regulators On/Off bottom line Clamping feed-neck 14 inch 2 piece Worr barrel Fully adjustable trigger Quick release pull pin Lightweight short delrin bolt