The ETM started with a blank sheet of paper and 30+ years of 1911 and 1911 magazine experience. It WILL set a new standard in 1911 magazines while redefining state-of-the-art.
I couldn't be any happier with the magazines, I replaced the factory magazine that came with my Kimber Custom II Tone. No more jams or feeding issues anymore. Kimber replaced the trouble magazine at no cost but took almost 3 weeks to receive. I recommend the Wilson Combat mags. for 1911s over any other one.