Re: 1911 Magazine Question
To my understanding you could easily turn most 7 round pistols into 8 round pistols just by using a magazine designed for it. Ones from Wilson Combat, Tripp research, Chip McCormick, etc. would likely do just great.
Now I could be wrong on this, but I have a SW 1911 that has both 8 round mags and 7 round mags that work well with it. I think it would be as simple as just changing the mag.