Borescope Recommendation?

[Hansel&Grendel]

I prefer to use clamp-on adjustable gas blocks. I've been good at lining up barrel gas ports to the AGB ports but I want absolute precision via a borescope. Any recommendations?

Thanks,
Hans

[Chev2500]

Teslong is under $100 and works well
Hawkeye is under $1500 and works well too

[mdram]

use the spaghetti noodle trick, its cheaper

[Hansel&Grendel]

True, been there. Just trying now to use technology as a friend.

[Mesa1978]

Teslong and a Chromebook using the camera reversed view works perfectly for me.