handgun2: "Inquiring minds want to know" Great questions!! I really dislike those goofy P-06 magazines. I feel the same about the SP-01 9mm magazine (18rd). Hey, at least tell me it's "raining" if you're going to p%#s on me. SIG uses the 20rd extended magazines in the P226 Blackwater and "faked it" by using a very well done extended grip panel. I mean I like the 18rds, not the longer grip dimension. When I carry my SP-01 on the job I use CZ75B a 16rd magazine in it and my extra mags are the SP-01s. I always count rounds when I fire.