I took my Factory CZ-75 15 round mag, and cut slots in the bottom where the indentations were. I used a cutting wheel on my Dremel tool, with the Dremel tool mounted upside down in a Dremel drill press, and holding the mag in my hands. Please use eye protection when using a cutting wheel on a Dremel (this is not an optional request! The wheels shatter and go flying at about Mach 4!)
That added 1 extra round (17->1
. I then cut the follower somewhat, and that increased the capacity by another 1 (18->19). All capacities are measured in the magazine only; not including a chambered round.
I'm confident that I could cut the follower more for 1 more (19->20). I stopped because the gun will no longer slide lock on an empty magazine. I plan to change the mag spring, and retest. This mag has a WOLFF +10% spring, but it has been left loaded to capacity minus 1 for more than a year, and the spring looks weak.
Question: Have you tried cutting out the indentations at the top of the magazine?
I doubt that I will cut up any more Factory CZ magazines, but I might try some of the $12.99 USA brand POSes.
Andy Out.
