LNIB Holosun 507C X2 for RMSc footprint optic near Antioch, Nashville, TN

I recently purchased a LNIB Holosun 507C X2 from a guy and failed to verify it as a 507K X2 (RMSc footprint).  I want a 507K X2 not the 507C X2.  I'm willing to trade it for a 507K X2 if anyone would like a 507C X2 (RMR footprint).

I would also consider a different comparable RMSc footprint optic.

I'll load pictures later.   Can be contacted at REDACTED.