If I remember correctly from my Ruger ownership days, it does hinge forward and downward, but if you press it firmly, it should stay down at the end of its travel. It will actually be touching (or nearly touching) the front wall of the magazine well when it is tilted all the way forward.
Do be careful about poking around in there with your finger when the slide is locked back, because if you poke the wrong thingy, the slide will close quite forcefully on your finger, and your day will not be nearly as happy/carefree after that happens...
...and no, I didn't do it, but I was present when someone else did do it. Watching the aftermath of his error made me VERY careful in my future dealings with disassembly/assembly of that style of Ruger pistol.
"Placement is power" -- seen in an article by Stephen A. Camp
(RIP, Mr. Camp; you will be remembered, and missed)