1. Unload and clear the pistol.
2. Lock the slide back.
3. Push the ejector down.
4. On the left side of the frame, there should be a small notch. Align that notch with the rear of the slide stop lock. Drift the slide stop lock through the hole until it stops.
5. The slide is no longer attached to the frame. Remove slide from frame, then remove recoil spring assembly (it's not captured, so keep it under control, lest ye launch the spring into your living room), and the barrel.
6. Clean.
7. Reverse previous steps to reassemble gun; insert empty magazine to bring ejector to operating position.
8. Function check.