I have always been a fan of the GP 100. Being a fan is one thing but people are crazy about this gun. The first time I handled one I just got it. Then when I shut it for the first time I knew I will be an owner for life. I picked up the first used one I've seen in my area and it is now my baby. 4 inch, blue in 95%. Serial # 170-11***. I am now a GP 100 addict for life. Thanks Ruger.