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If it has no optics cut, no. If it has an optics cut, also no, because you need an adapter plate from Sig Romeo to RMR.

Wayne, Holosun Customer Service should be able to tell you at 909-594-2888 or by online inquiry here - https://holosun.com/index/index/contactus.html - - I would recommend the ROMEO1PRO --- https://www.sigsauer.com/store/romeo1pro-1x30-mm.html