The pattern of the optic pegs is different on all these optics, and as I understand, the Gaggione optics and the Jarmay optics use different MCPCBs to fit the different pegs, in so far as Jack has claimed. So swapping would require sanding off the pegs on the optics or using different MCPCBs most likely? Sanding the pegs off is pretty easy so long as you donβt mind it becoming harder to center the optics and risking destroying the optics.