The silver star as with the HW75 has the frame under the grip cut down, with this you can not fit 45 auto grips onto these pistols. Also this means to fit this to a silver star grip you would have to chop the frame of a regular HW45. I know you dont want to do this but I just thought I would clarify it. I have houge rubber rap round grips with finger grooves on my 45 but lots oif variations of colt 45 grips are on the bay mostly from thailand, I have never got any from here but there seems to be a good selection. I got my grips posted from the states and got stung for tax before I could collect them. Hope this helps good luck with finding some cool grips.