+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight, Color: Black, Flat Dark Earth, Battery Type: CR2032, Lithium Metal, Up to 24% Off w/ Free Shipping — 3 models

SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER SOR5111 Romeo5 Gen II Compact Flat Dark Earth 1x20mm, 1
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
1 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER SOR5111 Romeo5 Gen II Compact Flat Dark Earth 1x20mm, 1
2 of 13 images
SIG SAUER SOR5111 Romeo5 Gen II Compact Flat Dark Earth 1x20mm, 1
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
3 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
4 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
5 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
6 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
7 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
8 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
9 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
10 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
11 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
12 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101
SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102
13 of 13 images
SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Questions & Answers
Does it come with a low rise mount for Coates’s or lower mounting option?

Yes. It came with a mount that let's you mount it flat to the rail.

by J, Verified Owner, June 18, 2025
See 1 More Answer
Does motac turn off?

yes it comes with the motac auto shut off and turn on feature

by johnchip, Verified Owner, April 9, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Its a Sig Sauer GenII by Hamp, Verified Owner, March 25, 2025
I like the Gen1 and have two of them. So the Gen2 you have the Green Dot option...thats a plus for me. I like the new I-beam look. Is it better than the block mount of the Gen1. Probably not it just looks better to me. The new shape is more like a R...
Read More...
1/1 found this helpful
Helpful Positive Review
Initial box opening review by Rick, Verified Owner, October 10, 2024
Right off the bat, lost a star because it is advertised as, and is clearly stated in the description as a 1 MOA DOT. It is not, order form that came with package, and the box indicate 2 MOA DOT. Miss leading! BUT, it doesn't mean its a bad optic, and...
Read More...
3/15 found this helpful
Helpful Positive Review
Great product and fast shipping by James Stevens, Verified Owner, December 11, 2024
Overall a great red dot and received fast. Only reason for 4 stars and not 5 is the battery arrived dead. After replacing it works great
1/3 found this helpful
Helpful Positive Review
Great green dot! by Cmo44, Verified Owner, March 7, 2025
I purchased this green dot for my 10 mm stribog works great.Also comes with low mont if you would like to go that way.
1/1 found this helpful
Helpful Positive Review
For what it is by Biggie, Verified Owner, December 12, 2024
What it is, is green, so much better than old red. My battery arrived dead, so was not off to great start. As noted by others it is a not a 1 MOA dot as listed under features. It listed under specs as a - Dual reticule:2 MOA Dot or Circle Dot. It is ...
Read More...
1/2 found this helpful
Helpful Positive Review
sig sauer romeo5 gen 2 by johnchip, Verified Owner, January 15, 2025
I bought the red and green dot versions of the romeo5 gen 2 and really like the improvements over the first gen. The T-mount is great. The screw to torque it down was made much larger so stripping the scre is less of a worry. Overall it's a great dot...
Read More...
1/1 found this helpful
Read All 33 Reviews
In Stock
3 Models Available
Color
All
Reticle
All
Illumination Color
All
Condition
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $552.48
You Save Up to 23%
OP Bucks$11.20

Product Info for SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight

Refreshed with a bold new look, the next generation of SIG SAUER ELECTRO-OPTICS best-selling ROMEO5 series has arrived. The ROMEO5 GEN II provides a durable 1x aiming solution for civilians and armed professionals alike, with a crisp 2 MOA red or green dot emitter powered by a CR2032 battery that can be quickly replaced. Couple with SIG SAUER'S motion-activated MOTAC technology, the ROMEO5 GEN II boasts a 40,000 hour runtime under standard usage.image

Featuring top mount ambidextrous controls that offer 10 daylight and 2 night vision settings, finding the optimal setting for your environment is quick and intuitive. Capable of withstanding some of the harshest conditions, the ROMEO5 GEN II's IPX7 rating keeps your optic waterproof and fog-proof while the interchangeable I-BEAM Mount maximizes situational awareness.

Upgrade your shooting experience with the proven performance of SIG SAUER'S ROMEO5 GEN II optic. 

WARNING: California`s Proposition 65

Specifications for SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight:

Manufacturer: SIG SAUER
Magnification: 1 x
Objective Lens Diameter: 20 mm
Adjustment Click Value: 0.5 MOA
Optical Coating: Fully Multi Coated
Battery Type: CR2032
Battery Life: 40000 hours
Water Resistance Level: IPX-7
Length: 69.7 mm
Height: 61.5 mm
Weight: 5.5 oz
Red Dot Sights-Footprint: Not Applicable

Features of SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight

  • Ruggedized Industrial Design
  • I-BEAM Mount for maximizing situational awareness
  • 12 Settings (10 Day + 2 NV)
  • 40,000 hrs Runtime with CR2032 Battery and MOTAC Motion Activated
  • Top Mount Illumination Controls for Ambidextrous Operation
  • Dependable IPX7 Waterproof and Fog-Proof Performance
  • Parallax-Free Optical Design

Package Contents:

  • SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight

SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101 , MPN: SOR5101 , UPC: 798681694600 , Code: SD9-RD-ROMEO5G2-SOR5101
  • SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102 , UPC: 798681694617 , Code: SD9-RD-ROMEO5G2-SOR5102
  • SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight , MPN: SOR5111 , UPC: 798681716241 , Code: SD9-RD-ROMEO5G2-SOR5111

SIG SAUER ROMEO5 Gen 2 1x20mm Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101 , MPN: SOR5101-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5101-EDEMO-IN-C
  • DEMO, SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101 , MPN: SOR5101-DEMO , Code: SD9-RD-ROMEO5G2-SOR5101-DEMO
  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Red Dot Sight, 1x20mm, 2 MOA Red Dot, Black, SOR5101 , MPN: SOR5101-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5101-EDEMO-RE-C
  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5102-EDEMO-IN-D
  • DEMO, SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102-DEMO , Code: SD9-RD-ROMEO5G2-SOR5102-DEMO
  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5102-EDEMO-OB-A
  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5102-EDEMO-OT-B
  • USED, SIG SAUER ROMEO5 Gen 2 Reflex Green Dot Sight, 1x20mm, 2 MOA Green Dot, Black, SOR5102 , MPN: SOR5102-EDEMO , Code: SD9-RD-ROMEO5G2-SOR5102-EDEMO-SC-D
Compare (0)
1 item has been added
Add at least two items to compare