I was at my LGS today and he had 2 RIA's on hand. He had a full size model and the 4" model. This was the first chance I have had to check out a RIA 1911 and I really am impressed. There was no play between the slide and frame on either one. I darn near brought the 4" model home, but I was planning on the ATI GI 4.25" for my next 1911.