This will not have a co witness factor as it is a magnified item and those are not co witness
All the Romeo 4 models – 4H, 4S, and 4T models have 4 selectable, integrated reticle options – dot, circle-dot, dot with holdovers and circle-dot with holdovers.
Mark H.
The SIG SAUER Romeo4S Solar 1x20mm Compact Red Dot Sight w/Mount weighs 7.6oz.
Yes, the SIG SAUER Romeo4S Solar 1x20mm Compact Red Dot Sight will function as intended paired with a Juliet 5x Magnifier.
Yes, the SIG SAUER Romeo4S Solar 1x20mm Compact Red Dot Sight is compatible with Aimpoint Micro mounts.
Yes, this red dot would be great on a shotgun for CQB. There is an included low mount that would work well with your shotgun.
Both the Romeo4S and the HS515CM are very similar. It is more of a personal preference of aesthetics and reticle choice that suit your tastes and needs. They are both great options.
Yes, this red dot has 10 daytime settings and 2 night vision settings.
the 4S model has solar powered capabilities, the C models have multi reticles.
The difference is the reticle. MPN: SOR43022 is the circle-plex and the MPN: SOR43021 is the circle-dot. Images of both reticles can be found in the pictures on this webpage.