Here's my two cents worth. I have a 34MOS, which I love. I like the extended slide and longer sight radius. After mounting a red dot sight, I found it was not for me and removed it. I shoot with iron sights now, just as I have for over 40 years. (damn, I'm getting old!) I have to go with the MOS purchase rather than a costly mod that in the long run will probably devalue the pistol, unless you can find the right buyer. With the MOS version of any Glock, you simply put the slide piece back in place and you have an original MOS, no mods no value added stippling. I personally shy away from modified guns.

