I took the mags that came with my new P45 apart to clean them. The 7-rounder had a 14-coil spring... the same that the 5 and 6-rounders use. It is 4 coils short and before too long will not reliably feed or lock the slide back... too little spring. The replacement coils are 18 coils and a real b!tch to install!. I put a spare into that one with much trouble and cussing!
All of 7 of my 7-rounders were like that when the 5's and 6's springs started shattering. All of the springs were replaced by Kahr, but recently I found that one of the replacement 5-rounder springs had shattered.
I have 5 more 7-rounders inbound to replace the split ones and will check those out for correct springs. I will report findings to the head of customer service who has worked with me on my PM45 replacement. I think that there are a lot of 7-round Kahr mags out there with the wrong springs that could cause problems.
I ordered some more spring/follower kits at $15 each from Kahr... beats about $22 for the two parts separately! These are for the 1911 mags. I still have to test the two 7-rounders at the range some more, but they won't insert fully with the slide forward and 7 rounds loaded. I'll have to leave the slide back and chamber that 7th round for carry... 6+1+7(spare).
Wynn
USAF Retired '88, NRA Life Member. Wife USAF Retired '96
Avatar: Wynn re-enlists his wife Desiree, circa 1988 Loring AFB, ME. 42nd BMW, Heavy (SAC) B-52G's
Frédéric Bastiat’s essay, The Law: http://mises.org/books/thelaw.pdf
Thomas Jefferson said
“A government big enough to give you everything you want, is strong enough to take everything you have.”
and
"Peace is that brief glorious moment in history when everybody stands around reloading".