The Vortex Impact 4000 is a ballistic rangefinder designed for Picatinny rails. It offers a maximum range of 3600 m and features the GeoBallistics® ballistic computer. It includes compass, barometer, thermometer, and hygrometer sensors, as well as Bluetooth connectivity with the GeoBallistics® app and external weather stations.

• Reflective range: up to 4000 yd
• Tree range: up to 2500 yd
• Deer range: up to 1500 yd
• Minimum range: 5 yd
• Accuracy: 0.5 yd at 100 yd
• Weight: 6 lbs
• Dimensions: 14 × 12 × 8 in
• Measurement modes: 7
• Angle compensation technology: HCD
• Reference cards: creation and archiving
• Connectivity: Bluetooth for remote control and app