Would love to see that jiman...how the rear look when you had them on the shield? How did you like it?
Oh, sorry for the confusion, I own a VTAC and preferred a blacked out rear, so I took it off and replaced it with a 10-8 rear sight. I don't own a Shield.
I was going to take some pics of the VTAC rear held alongside of my co-workers Shield so you could get a better idea of how it would overhang the sides the Shield slide or not.
FWIW, my opinion of when the VTAC sights were on, are that they were good. I really thought they'd be too busy, but found that the fiber optic and trit didn't compete against each other.
In a variety of lighting conditions either one glowed or the other but not all 6 at the same time…that would be bad

. I also liked how the rear U-notch is cut deeper allowing me to pick up the front sight slightly earlier. I also haven’t had any issues with the fact that they are taller than normal sights. I’ve only carried it in one holster (Garrett Industries AWIB) so my experience is limited, but there’s plenty of sight channel for the front sight. I’m not sure how that would translate in a Shield holster.
The reason I kept the front VTAC sight on was because I like how it tapers to a finer point near the top. I found the taper does draw my eye better vs. a traditional square cut front sight. With that said, you shouldn’t replace the rear only. The higher front sight requires a higher than normal rear. If I hadn’t found the 10-8 specific blacked out rear sight I would have had to keep it stock, replace both front/rear to another brand, or get used to a POA/POI difference.
Probably unlike many, I didn’t buy the VTAC because of the color or sights. I really wanted a manual safety and it was one of the few I could find in stock at the time that had the frame cut-outs to retro-fit it after the purchase.
I hope that helps clarify things.