Technical Data
Reflex sight · red dot
Sig Sauer ROMEO4XT-PRO red dot sight 1x20 2 MOA Ballistic Circle Dot Flat Dark Earth (FDE)
Mil-spec 1x20 red dot sight with top activation, NV override, AAA battery and four selectable reticles for picatinny rails.
This configuration
This version is finished in Flat Dark Earth (FDE).
Features in practical use
Four selectable reticles
The sight offers four reticles: dot, dot with holds, circle dot and circle dot with holds. The centre dot is 2 MOA, the holds correspond to 5, 9 and 15 MOA and the outer circle to 65 MOA.
Top activation with NV override
The brightness buttons and the NV override switch sit on top of the housing. The NV button toggles between maximum brightness and the night vision setting.
12 brightness settings
Brightness can be set in 12 steps for daylight and night vision. D.A.R.C. coatings and brightness settings are designed for Gen 3+ night vision devices.
MOTAC and AAA battery
Motion activation combined with a common AAA battery gives 50,000 hours of runtime; the sight switches off after 120 seconds without motion.
Two mounting heights in the box
The sight is configured for 1.41 in (35.8 mm) absolute co-witness from the factory. A riser kit for 1.63 in (41.4 mm) lower 1/3 co-witness is included. It mounts with a half-inch hex bolt.
Flip-backs and ARD
Clear flip-back covers, an opaque front flip-back and a thread-in ARD kill flash are included.
Elevation and windage adjustment
Elevation and windage adjustments move in 0.5 MOA steps (100 MOA total travel each).
IPX8 and MIL-STD-810
The manufacturer lists IPX8 (waterproof and fog proof) and states testing to MIL-STD-810.
Included items
- ROMEO4XT-PRO 1x20 mm red dot sight
- Battery (AAA)
- Clear flip-back lens covers
- Opaque front flip-back
- Thread-in ARD kill flash
- 1.41 in absolute co-witness mount (installed)
- 1.63 in lower 1/3 riser kit
- Optic multi-tool with Torx T10 drive bit
- Lens cloth
Matching products
With the installed M1913 mount (half-inch hex bolt, 65 in-lbf) for picatinny rails. The firearm is not included.
* Firearms, mounts and other accessories shown are not included unless they are expressly listed. The selected product variant and the described scope of delivery are decisive.
Sig Sauer
