I’ll keep an eye for whe the M&P version comes out.
Oooooh!
Is it compatible with Glock switch? 
Sooooo,…. As much as I like the 250,… amongst their other patterns…..
Great quality, Fits as advertised!
Doesn’t include the 10 year jail sentence selector button (switch)
Extractor spring, it’s a G43. IIRC the extractor spring assembly is completely covered by the plate on the double stacks, but I’m not getting in the safe right now to look.
My 30 has the same cutout just not as pronounced.
The extractor bearing is directly behind the cutout
Is that a 365? Link?
That was one thing I was disappointed about when looking at Milspins catalog, nothing for my 365 
Why yes, yes it is. 
I saw that too, but I think it would look terrible on the tiny backplate of the 365 
Scrolling through their patterns, I like the we the people flag like @David1600 posted, or maybe the don’t tread on me snake….
black infill against a FDE plate to match my black/FDE gun
Frickin enabler! 