"Bought one mag to try out. The cost is cheap, but so is everything else about this mag. First off, it only hold 17 rounds, not 18. If you have one round chambered you can have 17 more in the mag. The bottom plate does not fit into place snuggly. When loading the mag, the follower becomes snagged on a small cut-out at the top of the mag - after loading the first 2 rounds. It also, sometimes gets snagged on the lower cut that secures the mag. The quality of this mag is terrible. I would not use this as a duty or defensive mag. I\uFFFDll save it for target practive use. On a brighter note, the mag feeds just fine. And a little sanding of the follower fixed the snag problems. But for duty use, I\uFFFDll stick with my 15 round mags that I know I can count on."