DISASSEMBLE:

1. Hold slide back until first notch lines up with slide release.

2. Use tool to gently pry out slide release because there's no button to press on the other side. 

3. Remove slide. 

4. Depress spring and remove. 

5. Reverse repeat to disassemble.

6. To put slide back on, push down silver hook and slide it past.

7. Get slide back to correct place and push slide release back in. 

This is super hard every time. Watch the video