Springfield Armory's "AOS" optic plate system for the Prodigy 1911DS has a lot of options for mounting a wide variety of different optics, but the factory plates fit a little loose on the slide and the mounting screws are very small, which can cause issues with the screws coming loose or shearing off. There are several companies that make aftermarket mounting plates for the Prodigy that fit better and use stronger screws, but the screws are still very small for the task.
We've experienced loose or broken screws on multiple 1911DS guns that we've mounted optics for on customer guns as well as our personal guns, so we came up with a fix that should help keep the screws from backing out or shearing off. We use an oil resistant black RTV silicone to help secure the plate to the slide. The silicone is applied to the bottom of the plate as small dabs in specific spots so that it fills up any gaps when the plate is screwed down. We've done this to all of our personal guns as well as several customer guns and the plates and screws all continue to remain secure.
Before installing the optic plate with the silicone applied, make sure that the screws that secure the optic to the plate don't protrude through the bottom of the plate. If they do, you'll need to trim the screws down so that they are completely flush with the bottom of the plate. You should also make sure that the mounting plate screws don't contact the extractor inside the slide, which could cause feeding/extraction issues or could cause the screw to come loose at a later date.
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