Little doubt it is a China sight, but so are all the pink dots that match to the Defend footprint slides just like the 43x/forty eight MOS. Oh yeah, this Riton crimson dot has the Shield footprint so no have to have for any plate to mount it, goes right https://glock-43x-mos-frame53840.digiblogbox.com/43035857/glock-43x-mos-slide-things-to-know-before-you-buy