I recently bought a 365XL and right out of the box, one of the magazines didn't work. I contacted Sig and they wanted me to tweak the magazine to see if I could get it to work. I refused as then I would have altered the mag and they wouldn't replace it. Furthermore, I shouldn't have to tweak something that is brand new. I ordered another mag from my dealer and that one had the same issues. To make matters worse, Sig isn't standing behind their product. I have no confidence carrying this pistol on or off duty.