DoNotUnplug
Alpha
Few notes for anyone following this thread... I ended up mounting a Holosun 508 using the plate. Fit seems snug although I have concerns about the relatively shallow depth of threaded holes for mounting the optic to the plate. Time will tell how well they hold up, I suppose.
Also, it's nearly impossible to find the proper 6-32 screws. None of the online stores carry the correct length and head diameter. In fact just because it seems to fit, doesn't meant it's making paper contact with the optic. Holosun in particular apparently makes their own screws in-house with a rather thin but wide head that maximizes contact, so I've had them ship me a set separately. None were the proper length still and needed to be cut down... sound simple, but it's a PITA to get it done just right.
In the meantime I shipped the original XD slide out for milling so we'll see how that goes... I just had my stainless 1911 TRP milled and it came out fantastic. So depending on how good the XD milling comes out I might stick to milling vs this adapter plate stuff.
Also, it's nearly impossible to find the proper 6-32 screws. None of the online stores carry the correct length and head diameter. In fact just because it seems to fit, doesn't meant it's making paper contact with the optic. Holosun in particular apparently makes their own screws in-house with a rather thin but wide head that maximizes contact, so I've had them ship me a set separately. None were the proper length still and needed to be cut down... sound simple, but it's a PITA to get it done just right.
In the meantime I shipped the original XD slide out for milling so we'll see how that goes... I just had my stainless 1911 TRP milled and it came out fantastic. So depending on how good the XD milling comes out I might stick to milling vs this adapter plate stuff.