I don't care for the way those, and the nearly identical FoolProof clip-on, hang out/off the side of the action, much preferring the smaller/neater top-mount WGRS-54 clip-on.
Even though the WGRS-54 may require a taller front sight (because it's a tad taller than a 5D/FP), I usually change the front sight out anyway when I peep a rifle for another with an Ivory or fibre-optic bead - why not a taller one at the same time, too ?
YMMV, though.
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