I have four Glock 19 Pro-mag - HIGH CAPACITY 15 round magazines that are the solid polymer with metal lining. They are the nicest aftermarket magazines for the Glock I have seen and feel very solid like original Glock factory mags, not cheap thin plastic like most of the other mags I have seen. Anyhow, three are brand new never used mint condition and one is in excellent condition and looks perfect as if it hadn't ever been used just like the other three.
$17 each plus $3 shipping.
I also have two of what I believe are Pro-mags of a different style for the Glock 19 as well. They actually have the 15 holes on the back that aren't marked and the mags are just polymer non-drop free versions. They are just the mag bodies with internals. I have two of these for sale at $10 each + $3 shipping.
If you are interested and would like and photos of the mags emailed to you just send me an email.