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Hi Darrell and welcome. Yes Sir. Both 508T and 507K use the Trijicon RMR footprint, meaning they can be mounted on the same slides or rails designed for RMR sights. Cheers and stay safe!
Hi Darrel, no sir, they are not the same. The 508T uses the RMR footprint and the 507K uses the Holosun K footprint. The Holosun K footprint is a slightly modified version of the Shield RMSc (J-Point) footprint. The mounting holes between the two footprints are identical meaning that optics cut for the Shield RMSc footprint will allow any Holosun K footprint optic to line up with the mounting holes. Stay safe & have a great day!
