Umarex Elite Force glock mags
 

Is it ok if I use a WE glock 17 mag with an Elite force glock 18c

I believe they are all cross compatible except the KWA.

Thank you I will buy 1 for like $50 to check and if not boo hoo I loose 50 bux

Mag will work.
 

Might be a bit tight so you may need to pull out the mag instead of it dropping out.

I have the Umarex Glocks and yes the WE mags will fit Umarex and shoot fine. One thing to note, is it will be a bit snug, like the post above said, when you press the mag release the mag might not always drop out freely and you need to tug on in it slightly.