Purpose-built for the U.S. Military’s M17/M18 platform, the ROMEO-M17 is the only red dot truly engineered around the pistol — not adapted to it. American-built, MIL-SPEC rugged, and optimized for low-deck co-witnessing, the ROMEO-M17 gives your M17/M18 the fast, durable aiming solution it was designed to accept.

Key selling line: A true SIG-designed, purpose-built red dot for the M17/M18 — low profile, sealed performance, and surgical mounting with the SIG-LOC interface.

Why choose the ROMEO-M17

• Purpose built, not compromised. Designed specifically for the M17/M18 platform and the SIG-LOC mounting interface for the most secure optic/pistol lockup.

• Sealed and battle ready. Fully enclosed, purged optical system with drainage holes to protect against the elements and pooled fluids.

• Ultra-low deck height. Allows a full sight picture and co-witness with standard sights for fast target acquisition.

• Simple, rugged controls. Recessed, tactile brightness buttons you can operate with gloves; threaded side battery cap for quick changes without removing the optic.

• Night vision capable. Multiple NV-optimized settings make it practical for Gen-3+ NV gear.

Highlights & Features

• SIG-LOC™ mounting interface — fits SIG M17/M18 military issue and commemorative pistols that use the single optics plate mounting screw. Will not fit other pistol models.

• 2 MOA dot + 32 MOA circle — independently selectable: circle only, dot only, or circle/dot combo.

• 7075 aluminum housing with integrated gas deflector and machined anti-reflection grooves.

• Motion & magnetic wake — MOTAC (motion activated) and MAGNETAC for instant readiness and battery savings.

• D.A.R.C. coatings (Dark Adaptive Reticles & Coatings) for improved contrast and low-light performance.

• Tool-friendly adjustments — tactile clicks, 1.5 MOA per click; slotted adjustment screws accept small flat tools.

• User-serviceable battery — side-mounted CR2032 with knurled, slotted cap for easy changes.

• Durable drainage & purge design — two side drainage holes behind the rear window to remove pooled liquid when changing orientation.

Who it’s for

• Owners of SIG SAUER M17 / M18 military or commemorative pistols who want a factory-designed optic that fits and functions exactly as intended.

• Operators and serious shooters who demand MIL-SPEC durability, low-profile mounting, and night-vision compatibility.

• Anyone who wants a US-designed and assembled red dot tailored to the MHS platform.

Important Compatibility Note (Read Before Ordering)

The ROMEO-M17 uses SIG SAUER’s proprietary SIG-LOC mounting interface and only fits SIG M17/M18 military issue or commemorative pistols that use a single optics plate mounting screw. This sight will not fit other pistol models or non-SIG optics plates.