Originally Posted by
fatdog
I have now converted 10 P2000/USPc 9mm 13 rnd mags with the factory 15 to 17 conversion kits intended for the P30/vp9 using the spring that came with the kit. Kit installs easily and I just keep the existing baseplate. I have run each through 4 cycles in either my p2000 or USPc in the 15+1 configuration without any malfunctions, including Federal HST 147, 124+P , Winchester 124 Nato and finally some 115gr blaser aluminum (looking for a malfunction in the last case) ammo.
As cited it is much harder to seat with 15 on board. I also noticed that with 15+1 in the gun, the magazine release paddle is MUCH harder to activate to unload the gun. While I am keeping the kits in place, I am only going to load 14 from here on out. So 14+1 for me. Seating, loading, and unloading with 14 in this config is indistinguishable from the 13 round config.
I tried using the original P2000/USPc magazine spring and it alleviates that tight top round a bit, but since I am pushing the mag to higher capacity I am going to leave the extra power springs in place for now and settle for 14 in those mags.