Using a Beretta 92 basepad locking plate, and cutting down the stock follower a little bit, I get 20 rounds--so 20+1. It's pretty tight at 20, so I don't think I'd reload to it in the middle of a stage unless I downloaded it to 19. I'm going to try out a few different springs, but it appears that a factory spring might just work OK. It won't have the service life that you would get out an un-modified mag, but the big-stick mag will only get used on stages where it would be needed, and I can always get more springs.
Edited by RAZZ, 06 March 2012 - 09:09 AM.