I?m currently shooting a P10C in Carry Optics. One of my mags is a P-09 19-rnd magazine fitted with a Springer Precision basepad and Grams follower for a total capacity of 23 rnds. I?m using this mag extension:
https://shop.springerprecision.com/Springer-Precision-CZ-P09-P07-P10C-EZ-140mm-base-pads-SP0316.htm
Thanks 2morechains for this info.
Looks like they fit the 141mm gauge OK?
The new USPSA rules effective Feb 2019 even say it's OK to press them down slightly in the gauge as long as they sit flat.
Of course I'd like to use the 2 factory mags I have (I think Mecgar?) which say 19rnd but have the +2 basepad. I'm thinking the metal tube is identical to the 19rnd P-09 mag you're using, so it's worth a try.
I've also heard the new P-10
F mags will retro-fit the P-09 as well. Like the P-10C mags vs. P-07's, they'll probably be less expensive too, but I haven't seen them out there yet. I'm using the 15rnd P-10C mags (with red follower) with the ShieldArms +5 extensions in my P-07 for 20+1 and they easily fit the 141mm gauge and work very reliably.
I'd even be OK with 20 rounds so maybe there's a +1 basepad that will fit the P-09 mags?
Any other suggestions welcomed.
Thanks. -Vinny