yep you can for sure get a diff grip, but if i were you i'd at least hold the .45! make sure you sweet talk the dealer too and see if you can have them put the clip in it before you hold it, SOME WONT LET YOU! arhhggggggggggggg! totally different feel AND more so the feel changes a bunch when that jacket is FULL!!!!!!!! sorry you prob know that =-)
used to have this same gun (with adjustable sight), very nice for the money... due to some "a paperwork glitch" I no longer have it though...