Crimson Trace laser grips for M&P 45?

Quick question does anyone know what size the CT laser grips most closely resemble for the M&P 45. My hands like the feel of the factory medium grips that came with the gun but when I shoot this my rounds always hit to the left of where I aim and go even further left when I shoot the small grip. When I shoot with the large grip my rounds hit point of aim and the grip feels alright just not as good as the mediums. I have large hands so this kind of makes sense. Long story short I hope they are close to the large grips. I don't see where CT makes different sizes it looks like they only make one size.

I really don't need the CT grips and don't even know if I will even get them just curious to hear what size they are.
 
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