I haven't had much of a chance to evaluate this yet, but I did try the MK40 slide stop over the weekend and it did not help... I wanted to wait until I received the new one from Kahr before posting back... it came yesterday and (as expected) is the same.
So I've got 4 mags that all fail to lock back on the T40. So now I'm thinking the metal tabs on the followers have gotten pushed in somehow... on ALL of them... so I took one apart and struggled to find a way to pull the metal tab out a bit... ANY SUGGESTIONS ON HOW TO PULL THIS TAB OUT A BIT???
I managed to scrape one up a bit and pull it out enough to now scrape the inside of the magazine a bit as it slides in and out. It does now slightly catch the slide stop but also rubs inside the magazine... not sure this is how it should function and would imagain over time the friction will push the tab back into the mag.
So I need to take a step back and reevaluate. Compare different kahr guns to the T40 and figure out what's causing this. As I said, I didn't have time to play around last night but I did give it a bit of brain power while sleeping! I know I put the TP9 stop in there and it extended significantly further in and catches the metal tab easily... what I did not do was put rounds in the magazine and ensure the slide stop doesn't catch the live rounds too... I'm thinking it will so my problem wont likely be solved with a differnet slide stop (nor should it since I now know I have the right one... and should be working with this slide stop).
Now that I realize the correct slide stop is in the gun and it doesn't catch the lock back tab on the follower, it has to be something with the mag follower, right?
For now, if someone can give me some advice on how to pull the metal tab out a bit from the follower (hopefully without scaring up the top of the metal tab) I'll extend them as far as possible while not rubbing TOO much on the inside of the mags and see if that helps. And I'll do some comparisons with other kahr guns that are working correctly and try to figure out exactly how much contact is needed between the slide stop and the tab on the mag follower for proper function...