SIG Sauer ROMEO-X
A modular pistol optic line in open and enclosed (Pro) versions with a wide window and easy battery access.
The Rundown
The SIG Sauer ROMEO-X is SIG's modern pistol-optic line, offered in both open (Compact) and fully enclosed (Pro) versions so you can match it to a range gun or a hard-use carry pistol. It features a wide viewing window, a top-loading battery for no-zero-loss changes, motion-activated illumination, and a circle-dot reticle option — a strong, feature-complete package aimed squarely at the Holosun and Trijicon competition.
The enclosed Pro version is the pick for a serious carry or duty pistol thanks to its sealed emitter, while the open Compact suits range and lighter-duty use. Confirm footprint compatibility with your slide. For shooters in the SIG ecosystem — or anyone wanting a modern, well-featured dot with an enclosed option — the ROMEO-X has quickly become a popular, frequently recommended choice.