Papa G’s take on this sight
This would be a GREAT sight for one of them thar EXTAR EP9's!!!!!!

Product Description
Sealed compact red dot sight with 20,000+ hour battery life.
The ROMEO-MSR is a sealed compact red dot dot sight intended for MSR, carbine, shotgun and air rifle. Brightness is adjusted with a top-mounted rotary dial, featuring 10 daytime and 2 night vision settings for quick target engagement in any condition.

Features:

- High-performance lens coatings for excellent light transmission and dot contrast in any situation.

- Ultra-compact size and weight with unlimited eye-relief and parallax-free operation.

- Precise 2 MOA Dot

- Slipover, see-through flip-backs

- 1.41” T10 Torx M1913 Skeletonized lightweight Riser Mount for absolute co-witness

- Top loading battery compartment with integral brightness control featuring 10 daytime and 2 NV settings

- Over 20,000 hours runtime on a CR1632 battery

- Aircraft grade aluminum housing and mount

- Dependable IPX-7 waterproof and fog-proof performance


Product Specifications
MANUFACTURER: SIG SAUER
FAMILY: Romeo Series
MODEL: Romeo MSR Compact
TYPE: Accessory-Lasers and Sights
FINISH: Black
FINISH TYPE: Black
MAGNIFICATION: 1X
OBJECTIVE -or- APERTURE SIZE: 20mm
ADJUSTMENTS: 1.0 MOA
RETICLE: 2 MOA Red Dot
ILLUMINATED RETICLE
SHIPPING WEIGHT: 0.65 lbs.
ADDL INFO: Fits M1913 Picatinny Rail
MFG MODEL NO: SOR72001
UPC: 798681618675