N-BK7 Optical borosilicate-crown glass from SCHOTT

Oh this thread again, lol Yeah basically some do some don't and the sheath always has a slot for it The Bk10 is far from being reproduced

Does anyone actually use the quick access slot in the front of underwear? Bk7 • 12y ago TIL there is a quick access slot in my underwear

bear slot Oh this thread again, lol Yeah basically some do some don't and the sheath always has a slot for it The Bk10 is far from being reproduced

bc game slot BK7 is a standard glass for all kinds of optics The SCHOTT glass is nearly bubble free, has an excellent clarity, and a very low amount of inclusions