Converting your 17 round mags to use in your P320 x5 (or x-carry) for USPSA, or better carry length, but want a better matched base plate to mag well....this is for you.
I designed this for my x5 cause the shape fo the x5 magwell didn't match the baseplate for the 17 round factory mag basplate. Added side divots to be able to pull a mag out when caught.
Order them in steel for a better drop weight.
NOTE: This only works for older (pre x5) sig sauer magazines with the round base plate release. Check my other models for the newer sig sauer magazines with the rectangle base plate release.