I recently found out that there was a company who's making 170mm magazines that is purported to be able to fit 30 rounds of 9mm ammo so I decided to purchase one to give it a try. Company is called MBXExtreme.com and they currently have four models of magazines 170/140 in 9mm and 140mm in 40S&W and 140mm in 45ACP. According to the website, the 140mm 9mm magazines can hold 24 rounds and 170mm can hold 29-30 rounds. As you can see from the video, I could fit 30 rounds in the magazine but not without some help. I think it'll get better after "breaking in" the springs. It is still not very clear to me how beneficial 30+1 rounds would be for me as most stages are around 30-32 rounds max especially with the stress that it puts on my grip. Perhaps it would be most beneficial if it was 31+1 for a maximum of 32rounds in the magazine. I have a match coming up in a few days, I'll take it out for a spin and report back with another video. Music used: New Trance Edition by DJ Alike https://www.jamendo.com/en/track/1026396/dj-alike.new-trance-edition Licensed under Creative Commons Attribution 3.0 (http://creativecommons.org/licenses/by-sa/3.0/) ... https://www.youtube.com/watch?v=BsmfKV90q0M