There is no standardization of grip sizes for the repro Remingtons. In my experience, the Euroarms/Armi San Paulo has the smallest grips, almost akin to the size of the Colt Navy vs the Piettas being larger like the 1860 Army. The Ubertis are in between. The Euro/ASPs are the lightest in weight, the Piettas the heaviest/beefiest. The Ubertis are closest to the originals in shape of the frame/barrel juncture. I've never owned nor handled an ASM Remington in recent memory so I don't know where they fall in comparison to the other 3 makes I have owned.