Vividia GB-460 USB Digital Manual Focus Gun Barrel Borescope Endoscope Videoscope Inspection Camera with 4mm Diameter and 24" (60 cm) Long Insertion Tube (Without WiFi Box) for PC Mac Android Devices

One problem to note - the borescope itself fits into 4.5mm/.177 barrel but does NOT so with attached mirror unit. Meaning, straight view only for 4.5mm :-( One may search some more to find something better suited for such a small caliber weapons.The unit was bought as "used and working" and the only thing hinting of possible usage (or manufacturer defect?) was little mark on mirror attachment which did not have noticeable impact on image quality.My tablet did not seem to connect to it, so OTG View2 also could not get any picture. Not sure why, maybe USB-C adapter or USB plug on device cable (something bent inside, crooked etc, plug did not have a real good fit into USB-A port). Other USB borescopes I have do work with OTG. Probably one of the reasons this particular unit was sold off.OBS Studio on my Linux laptop did the job. I'm good and fine with that.

I bought this product after my other digital borescope, made by a big reloading and gun related company, crapped out after a few weeks of use.The problem with that borescope was that it's an endoscope permanently mounted in a stainless steel brake line or something like that. The camera lens has no protection and is smaller than a poppy seed and is recessed. So when you get ANY liquid in it besides water, it's junked. It won't work and you can't clean it nor can you disassemble it to clean it. That's how mine broke.Fast forward to buying this borescope. It has a focus knob to focus on anything tight against the camera to across the room. It's much more versatile. Secondly it uses a computer screen that's about 4x bigger than the other popular digital borescope. Thirdly and most importantly the mirrors are removable so if they break you can replace or clean or change the view and access the camera lens for easy cleaning because the lens is a non recessed large protective cover. Long story short this is a better borescope in every way in my opinion.

The camera seems like it would be of good quality but I have had mine now for a couple of months and still have yet to have a functioning model. when I 1st received a it had a wiring problem I contacted customer support they were eager to remedy this problem. I mailed it back to them at my expense so they could repair it and they did and returned it.. after eceiving it the camera works amazingly and has a clear picture but the LED light does not function now. making it difficult to operate in dark and remote areas like the barrel of a gun where I intended to use it. I now have a very expensive camera on a stick that is worthless to me. I made 2nd attempt to try to either get a new one or a refund after the LED light situation and I have yet to hear back from them. It's like they have abandoned me.. Be aware that the item has a very very short window of warranty and you will be the one that pays for return shipping I am out the cost of the item plus 1 shipment back to them and still do not have a functioning camera on a stick

work well

This unit comes packed in an aluminum case with two 90 deg. mirror attachments, USB adapters and instructions for downloading the necessary software. The instructions are clear and explain many features I'll probably never use. Because you supply the video monitor, Oasis was able to put the money saved into the scope and optics. It appears to be pretty robust, and the image quality is very, very good. On first use, I found copper encrusted on the leades that I hadn't expected to be there. Examining a cut-rifled barrel and a button-rifled barrel revealed the huge difference in machining marks. All marks in the cut-rifled barrel were smooth and longitudinal. The button-rifled barrel demonstrated "chatter" common to this method. In short, this is marvelous tool that provides very high-quality images at a price less than an all-in-one borescope. Can't comment on longevity yet.

I am very happy with this. It was intuitive to use. If I was to do it over, I would buy the interface for iOS. Having to have my laptop out was the only inconvenience

i checked out the alot of different borescopes. i didnt want to spent 200.00 on one that said it was bearly ok picture. i came across this vividia gb-460. the manual focus is amazing. than i pushed the mirror tip on tighter and the picture was like i was in the barrel. i used my home computer and it was really a big picture i couldn't belive the detail of each mark and scratch in the barrel. i check out a new barrel for my kimber it was terrible with lines and part of the rifling had chips in the steel. my old barrel looked better after i fire lapped it. this borescope will show you everything from the lead that you didnt get out, to the chamber that was grabbing lead.

This borescope does a great job! Excellent quality images and the app is super easy to use. My IPhone is my viewing screen.I tried less expensive borescopes, but for twice the price this is 100 times better!