The SIG Sauer ROMEO-M17 (Coyote Tan) is a fully enclosed pistol red dot purpose-built for SIG M17/M18 (MHS) pistols. The sealed, gas-purged optic shrugs off moisture, dust and debris, while SIG's SIG-LOC bottom-mount interface locks it directly to compatible M17/M18 slides.
It offers a selectable 2 MOA dot / 32 MOA circle reticle, MOTAC and MAGNETAC activation, D.A.R.C. night-vision tech, a side-loading CR2032 tray and IPX8 sealing — in a coyote-tan finish to match issue and commemorative pistols.
Important compatibility note: fits SIG M17/M18 military, surplus and commemorative pistols with the MHS single-screw slide — it does not fit standard commercial P320 slides.
How It Compares
Prefer black? See the ROMEO-M17 Black. For an open optics-ready optic, see the ROMEO-X Pro. Browse the SIG ROMEO range, all enclosed red dot sights, and enclosed vs open.
Key Features
- Fully enclosed, sealed and gas-purged optic (Coyote Tan)
- Purpose-built for SIG M17/M18 (MHS) via SIG-LOC mount
- Selectable 2 MOA dot / 32 MOA circle / circle-dot
- MOTAC + MAGNETAC activation; D.A.R.C. NV tech
- Side-loading CR2032 tray; IPX8 waterproof
Technical Specifications
| Magnification |
1x |
| Aperture |
24 mm |
| Reticle |
2 MOA dot / 32 MOA circle (red) |
| Brightness |
15 (12 day / 3 NV) |
| Battery |
CR2032 (side-loading) |
| Mount |
SIG-LOC (M17/M18 MHS only) |
| Finish |
Coyote Tan |
| Waterproof |
IPX8 |
| Weight |
1.54 oz |
What's Included
- SIG ROMEO-M17 enclosed red dot (Coyote Tan)
- CR2032 battery, mounting screw, dust cover, threadlocker, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and SIG's Infinite Guarantee.
Frequently Asked Questions
Will it fit my P320?
No — the ROMEO-M17 is for SIG M17/M18 (MHS single-screw) slides, not standard commercial P320 slides.
Is it enclosed?
Yes — a fully sealed, gas-purged emitter for maximum reliability.
Black or Coyote?
Identical optic; this is the coyote-tan finish (a black version is also available).
