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Hello! I was just reading the details and specs and I’m not seeing anything describing the OS? Is this a DI or a piston? Also are the Romeo sight included is it a refurbished or a returned item?? I’m reading lots of issues with the sights not functioning properly in the reviews.

Charlie Batt

Referenced item: RMCX-16B-TELE-P

Sig's MCX line is all piston driven. The referenced model does not include a Romeo any rifles including Romeo sights will include brand new Romeo sights. We have not heard of any widespread issues and in general, it is very uncommon for us to encounter defective Romeo sights.

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