TEXASforLIFE
SAINT
My guess the "c" is for compact? After purchasing the m&p 5.7 it took some searching to get this info............optic footprint based on the RMSc which is compatible with 507k x2, swampfos sentinel, romeo 0 and RMSc. Does that mean I'm stuck with a compact dot for choices? I've been trying to get a compiled list if compatible optics bases on footprints for a while, but it's been a difficult find.