I was searching for +1 or +2 extensions for my Gen 4 Glock 21 FDE. Abd stumbled upon the 30 round kriss super v magazine. It uses a factory 13 round glock mag and they installed their extension on it at the factory and sell it for $60 or $70 (cant remember). So anyway I ordered one up and finally got it UPS today, started to load er up and only got 28 rounds in, and believe me the 27th and 28th rounds were the hardest I've ever loaded in a mag. I almost broke my thumb on the 28th! I tried to insert the mag but it wouldn't click in the frame, it was just too full but it worked with 27+1. To get to the point I'm just letting everyone know that if they order a 30 round kriss mag for their glock 45acp don't expect to get a 30 rounder, you get a 27 rounder. Its a great mag other than that, no issues or FTF, ect. Sorry for the rambling lol.
Cory
Cory