The new AFB Upgraded Shooting Edition of the Hawkeye 17-inch Slim Borescope takes everything you love about the original and adds an eyepiece with adjustable focus. This new eyepiece adds an extra element of precision when checking barrels. Just like the past kit, this borescope has a 0-degree direction of view and a 42-degree field of view. It also includes the Slim Mirror Tube, which gives users a rotating 90 degree direction of view, and a mini Maglite for illumination. This kit is great for inspecting chambers, leades, lands and grooves, gas ports, and crowns. Like all products sold by Brownells, the AFB Upgraded Shooting Edition of the Hawkeye 17-inch Slim Borescope is backed by our 100% unconditional forever satisfaction guarantee.