I wrote to Kimber about their mags in my aluminum framed gun:
I have been warned away from Kimber magazines for my new Kimber Compact CDP II. There was some concern about the metal in the follower gouging the aluminum frame.
Others have said if it has a "skirted" follower it should be OK.
How can I tell if the magazine that came with my Kimber is "skirted" or not?
The magazine that came with my gun has Patent 6,560,907 written on the top.
And I got the following reply from Kimber:
Thank you for your email and question. Kimber magazines can cause a bit of finish wear on the frame, but this is cosmetic wear and it will not cause function issues. Your follower is most likely a step down follower, which the top part of the follower is free and right below this is the step down to engage the slide stop. With a lot of use this magazine will cause a bit of wear, but I will not be excessive.
If you have any further questions please let me know and I will be glad to help you.
Thank you and best regards,
1-888-243-4522 ext 223
Kimber Mfg. Inc.
I have not yet run any rounds through my gun using the Kimber mag. But I have run about 100 rounds using the Wilson Combat mags I bought to go with the gun.
Not many rounds, I know, but I have not had any major problems yet. The gun is still in its break-in period and I have had four FTF, within the first 60 rounds. None in the last 40. Three FTF were with Monarch's FMJ. One with WWB Hollowpoint. All were the fourth round in the magazine.
At cleaning time, no indication of gouging on the ramp.
Never argue with drunks or crazy people.