Absolute garbage - ProMag Kahr Arms K9, P9 / E9 9mm 8 Round Pistol Magazine

Bought two of these and they were absolute garbage - first time I put one in my pistol to check how it functions, all the rounds in the magazine ejected from it when I hit the mag release and it dropped free. Decide to give it the benefit of the doubt for the moment - maybe the follower got stuck. Loaded both and put them in a mag carrier. When I pulled the mags from the carrier both ejected multiple rounds. Will not buy mags from this company again.