Also forgot to mention the entire fiber optic insert is plastic and flexes really easily. Probably not an issue most of the time, but because it's only supported by the ring on the rear that the globe cap presses onto when you screw it in, I can see where a twig or almost anything could push...
I ordered the standard WP sights with reticles (non-fiber optic) a few months ago and noticed it wouldn't be good in low light with the enclosed globe sight. Then I noticed the front globe was canted left and I returned it. Then they came out with the fiber optic version with holes cut in the...