This is my first Glock. Also my most expensive hand gun. Fired 200 rounds the first week I got it and loved it. Fit perfectly in my hand and I was pretty happy. Yesterday took it to the range again and put 200 more rounds down range and had some more fun. This morning I pulled it out to clean it - pulled from my IWB holster - dropped mag - emptied the chamber - pulled the trigger and the slide assembly slid right off the gun. That is when I noticed the take down buttons on both side were missing. So much for Glock quality. Forgive me - but I am royally pissed right now.