Put the slide on with the gun up-side-down with the hooks to the rear, then right it once the hook is about far enough back, so that it drops in place. Then once hooked place the muzzle down on a soft tabletop, press down on the grip frame and the top will slightly move back under pressure. Then clip the side plate into place and raise the lever to lock it in.
Or look at a youtube video...
dju
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