Like ccwnsc I also went to a gun show today and picked up a new Gen 4 G23 to go with my 17,20, 22, 27 It was test fired on 7-27-27 and has the 0-3-3 RSA and the ejector is marked 28926. Had night sights installed at the show and put in a Glock extended slide stop release when I got home. Had originally intended to get the G19 but changed my mind last night. The G19 and G23 Gen 4's are not as plentiful as the Gen 3's at the last 2 shows I have gone too. And there are not too many 19 or 23 Gen 3's. Show was crowded. Have been to this particular show 4 times in the last couple of years and the main parking lot was completely filled when I got there. Never had that problem before. Plan to shot tomorrow, weather permitting.