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This is a bundle of Vividia GB-430 Digital Gun Borescope 12" Long and Vividia VA-B2 AirBox WiFi Wireless Converter. 
With Vividia VA-B2 AirBox WiFi Wireless Converter, one can use iPad/iPhone/Android phone/Android tablet and our free App (AirBox) to preview live images, take pictures and record videos with GB-460 and GB-430 Rigid 4mm Diameter Gun Barrel Borescopes. GB-430 Rigid Borescope is ideal for detailed visual inspection inside gun barrel with 4 mm diameter and 12" long straight probe. GB-430 ha manual focus to adjust where the camera can focus, and high resolution of 1280x720. High quality side-viewing mirror can be attached to make detailed inspection of wall of gun barrel for machine marks, copper fouling, corrosion, rifling defects, gas venting hole inside rifle barrel and more. Short GB-430 USB Rigid Borescope is easier to handle and can be used on industrial manufacturing process to inspect cross bores and holes for burrs or other defects inside parts and components.   
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Package includes: GB-430 Rigid Gun Borescope, VA-B2 WiFi AirBox, 2 pcs side-viewing mirrors, OTG cable adaptors, Aluminum Toolbox.
Looking inside gun barrel with GB-460 or GB-430 Gun Barrel Borescope: ​rifling, grooves and lands, chamber, gas port, gas port hole