I'm unfamiliar with the Mark IV, but looks like the sights are the same as on earlier guns. These sights work very well as is. As a suggestion, consider trying them for a while; you may decide a change would offer no advantage.
Gets out of jail next week. Thinking of putting on a fiber optic front sight. Most likely green. Maybe a Hi Viz. There are quite a few choices so any other suggestions welcome.
Shoot it a few hundred times , to break it in and see what the factory parts do , before you go to changing out parts ...
My motto is "If it isn't broke , don't fix it !"
Paint the front sight flat white with White-Out Correction Fluid ... I find it stands out better than hi-viz and fiber optic .
I use a White-Out Correction Pen to "white in" the front blade ...it is flat white lacquer , cheap , easy to find and keep a pen in your shooting box for touch ups or to show your buddies how clever you are .
Gary
I like those grips. Ill check them out. Are they full wrap around? Don’t want to big for my kid.
I agree ... that's why I posted the tip about whiteing in the front sight blade with Bic White-Out Correction Fluid Pen ...I'm probably the only person with this opinion, but I find Hi-Viz sights to be distracting and harder to focus concerning my sight picture. It seems when on the dot I lose the clarity on the blade. I have degenerative eye issues though, so that probably accounts for a large part of it, but despite that it still seems distracting.