I was thinking of picking up an inexpensive FlipDot Optic (see, e.g. https://www.ncstar.com/optics-acc/reflex-optics/micro-dot/vdflipglom2-flip-dot-mod2glock-mosadptr ) for use with my Hellcat OSP.
They are designed for a Glock, but it is supposed to have adapters and plates for "MOS"...