For some unexplained reason the Kahr Thompsons have a different mag catch so a standard GI mag will not work without elongating the hole to fit the gun.
Many have modified the gun so we don't have to ruin the rapidly decreasing supply of GI mags.
I did this myself and was very happy I did.
I'm not authority on the thing but if there's something I can look at on mine for comparison on yours I'd be happy to do that.
I do think your dealing with two unrelated issues. The feed issue is rather common and it could be you addressed that on a poorly modified stick mag.
I'm not sure what to do to help you since I've not experience what you have and hope I never do, I'd of course love a full auto but that would be scary expecting one and get 8 or 9 at once.
Ghostsoldier if he's watching is pretty intimate with these he may have some clues for us.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."