Keep in mind that the 509t takes a special mount that isn't compatible with the RMR/507c/508t.
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Thanks.
I ordered myself a P30SK. If I like it enough I can get dovetail plate, an optic, and supressor-hight front sight I suppose.
DT error
Have to receive, shoot, and be sure I like it first.
I see there is a roll pin that goes through the top to secure the firing pin?
Not sure how that would interfere with an optic cut.
Then, someone has to cut my slide, not screw up, and replace that quality HK finish with something far less quality, like ceracoat, and I have to periodically check it for rust.
If I decide I want a different optic later, it may fit differently since the cut will have already been made for the 1st optic.
Too soon for those decisions.
Seems the included plate does raise the 509T more than necessary, but there is an alternative plate that raises it less: https://chpws.com/product/rmr-to-holosun-509t/#reviews
I have a training G17 with a RMR and no BUIS. Ran it two weeks ago in a blizzard, dot was gone from the snow and there was no getting it back. I ordered some BUIS for it immediately. Yes, they are necessary.