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optics foot prints defintions

powerboatr

Professional
on springfield website the slide i ordered for my legacy xd has cut out for optics similar to the hellcat
how do you know what the foot print definitions mean in actual size or measurements?
on the viridian webite that provided the optic for the hell cat, it lists the foot print as Shield RMSc
at springfield thier website states the below foot prints fit the xd slide??
  • rijicon®/Holosun
  • Leupold/Shield
  • Docter, Vortex®, Burris®, Springfield Standard
  • Holosun K Series

thanks
i figured all small ones are same same??? it looks like all are now using RMSC as the standard??? and the K series may or may not fit??
 
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I have found that the foot print is half of the equation, I bought a Vortex Defender XL dot, it has the Delta Point Pro footprint, however the body of the Vortex is thicker than the DPP body, making correct screw length an issue. That being said, I would look for an optic specific plate vs a footprint specific plate if at all possible. It can prove difficult to find correct screws otherwise. JM2C
 
I have found that the foot print is half of the equation, I bought a Vortex Defender XL dot, it has the Delta Point Pro footprint, however the body of the Vortex is thicker than the DPP body, making correct screw length an issue. That being said, I would look for an optic specific plate vs a footprint specific plate if at all possible. It can prove difficult to find correct screws otherwise. JM2C
viridian lists its self as fitting
but Springfield has not updated the site i assume
which is odd as they sell the hellcat with the same optic,
so i took the one off the hell cat after i measured and found it would mount on the new xd slide
so now i have to boresight the hell cat again :ROFLMAO: :love: ;)
 
All the small footprints definitely are not the same. RMSc, RMS and Holosun K are all very similar but do not fit each others respective footprints. Docter is a whole other thing. As you’ve seen DPP has a weird hybrid size that will work for more than a few optics. And the RMR footprint is the most common for larger red dots like the Holosun 507C, but guess what? If you have a slide milled specifically for a 507C an actual RMR or SRO will not fit because they are several microns longer than the 507C.

Viridian’s small dots are proper RMSc.
 
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