I remove my chambered round in the car, put the mag back in until I get to the door. Stick my full mag in my pocket upon just before entering and lock the slide back so the LEO's don't give me a nasty look. My Spyderco makes quick work of the zip tie upon leaving, slap the mag home and release the slide while pointing into the dirt at those planters by the door. (not that I have to worry about it going off prematurely, its a Glock)lol