how did you modify it? Maybe try that myself.
Take the mag apart and there is a flag on the bottom of the follower that can be removed. My Marlin Camp Carbine came with a 4 round mag that had a flag about 3" long. I cut that off and now the mag holds 12 rounds.
Some people think an English Bulldog looks great... many more people can't tell one end from the other, even by smell.
A village in Kenya called. They want their idiot back.