hello, my name is Steve and Im in Tennessee, just bought a P365 with manual safety, have been a Glock owner all my life but really wanted to get into Sig , so many questions, I have the 12 round mag I bought seperately , Im assuming you have to take the base plate off and replace with the extension that came with it? also Ive noticed when the slide is racked it stays in locked position with mty mag, is this normal? as stated Im very new to Sig , Glocks are different as they will go into battery with mag or no mag , loaded or unloaded , Ill be the first to tell you I have not read the manual yet and that is next step , Im very excited about this gun , seems to be the perfect EDC gun Ive been looking for , till now Ive carrying the G19, G23 , and recently the G43X , Im hopeful this P365 will become my go to EDC , any suggestions would be appreciated, thanks in advance