I intended to order a Glock 17 MOS at my LGS this afternoon, but I had to examine the hot new sexiness of the Glock 45. While I initially thought the full size frame and shortened barrel was goofy, I confess that I actually liked the G-45. I don't think sight radius or barrel length will significantly matter. Any objective reasons to select one pistol or the other? Either weapon will be carried concealed, but I carried my issue 226 and 226R concealed for many years. Thanks and be safe.