Practice how to disassemble and reassemble your new Ruger pistol until it becomes second nature to you. If this is your first Mark II style pistol then take your time and learn the routine of field stripping this new device. It won't take long before you throroughly understand how this pistol is put together. If you have any difficulties, then I suggest a visit to the "On Target Guns" website for a good tutorial explanation on the break down of your new gun. Good luck and good shooting.