Also a note with KCI mags. the springs and followers are slightly different so aftermarket springs may not work. i could not get +5 base plates on because the springs that came with the base plates were meant to fit glock followers.

i wanted to buy some cheap mags and +5 base plates that i wouldn't mind dropping on the ground while practicing. i ended up using glock mags and cheap base plates, the kci mags just wouldn't work reliably.

when used as is, i have had no problems with KCI mags so far but i would still not carry with them. for $7 they make great practice mags.