I'm not sure what model my Williams receiver sight is, probably not the WGRS-24. I think it is something like 22/410. It is made to fit flush with the receiver like the Lyman 53D. Both this Williams and the Lyman require drill and tap, but neither require a taller front sight.
I like the cleaner lines and more solid mount of the receiver mounted sights, but that is just me. We all have our favorites for all kinds of reasons.
Bfly

Be nice and work hard, you never have enough time or friends.