Update 01.30.21: As one commenter mentioned, over time, the "stalk" can snap under load. I solved this issue by making a 3/16 hole up from the bottom of the plate, to 1/4" from the top of the stalk, and inserted a piece of steel welding rod after printing. You may have to ream the hole with a drill, or tap the rod in.

This is a modified version of my first pistol stand (S&W Shield, https://www.thingiverse.com/thing:4250511).

This is for the Glock 17, and supports it loaded without any issues.