I've been looking at a Glock (45) but don't like the stock sites. Better sights on my old daisy bb gun. I like the fully adjustable target sites and also like the optional longer barrel but I think it is for the 40 cal. Not sure if it is available for the 45 or not. Does anybody know (if the longer barrel is avail for the 45 cal) ? Just joined this forum. So hello to everyone and hope to contribute something to the discussions.