Well, I never use the sheath, so I can't tell you how this feels on a belt. I took some photos of my 2-dot 112 in a nylon 110 sheath. It's a pretty snug. That might be because the sheath is practically new. I don't know if they stretch/relax a bit with use. Also, the 112 sits a little deep.
Side by side:
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112 on top of the sheath:
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110 pushed all the way into the sheath:
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112 pushed all the way into the sheath:
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