Got a great deal at Glocktoberfest a few weeks ago, and finally got around to having the XS Big Dot sights installed on G20SF. Here are the results: Really took a liking to these after carrying around G33 for a while. It has the same XS Big Dots installed, too. I hope that I can still hit something with this thing, anyway. Picked up some Federal 190 gr. bonded JHP while I was there to see what that shoots like. Not even sure if it'll work in this pistol. It's part number XM1003A, and was around $23 for 50 rounds. Going to go check the sight now to make sure they'll shoot Wanna kill these ads? We can help!