Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! 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 Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Questions & Answers
What is the difference in the Romeo 1 and the Romeo 1 Pro Expert Answer

The only major difference is the mounting pattern. The Rome1Pro was made specifically for the M17 pattern handguns to match military specifications.

by Armando R., Gear Expert, October 18, 2019
Will this fit p320 M17.? Expert Answer

Yes, the new Romeo1PRO is meant specifically for the M17 cut slides.

by Armando R., Gear Expert, July 5, 2019
Customer Reviews
Helpful Positive Review
Something so simple, but left out in the instructions. I got the idea to post this from another post, who mentioned about BATTERY INSTALLATION and He was right ! Kudos to him, for sharing this Brilliant insight, Thank You !! When your Ready to instal...
Read More...
3/3 found this helpful
Helpful Positive Review
Fantastic sight.....again! by Dhg, November 1, 2019
As a shooter that is in my 50’s the eyes are not what they used to be. This is a game changer for me. Love everything about this sight. Easy sighting in, small and rugged, battery door on top. I bought the 6 moa for my P320 X5 Legion. I don’t mi...
Read More...
62/63 found this helpful
Helpful Positive Review
Fit like a glove... by Traveler1125, Verified Owner, May 3, 2025
Put this straight on my Sig P320 9mm M17. No plates no muss or fuss. Torque to 30 . Took it to the range today. 1.5 MOA at 20 yds after sighted in. A Keeper
2/2 found this helpful
Helpful Positive Review
Perfect fit by Fitzy, Verified Owner, April 24, 2025
I have an Sig M18, fits perfectly and matches the finish of the slide. My biggest gripe is I lost the load chamber indicator spring when I was taking off the base plate.
1/1 found this helpful
Helpful Positive Review
Great Red Dot by Dave, Verified Owner, November 10, 2024
I bought this for my M18, mainly due to not needing a mounting plate. I am quite pleased with the product. It offers a wide window yet small profile. It's definitely easy to carry and not worry about printing. Side note: when inserting the battery,...
Read More...
3/3 found this helpful
Helpful Positive Review
Great sight / Horrible battery compartment by Vic Nolo, Verified Owner, February 16, 2025
Well the title says it all. I knocked a star off because installing or replacing the battery is such a chore. You have to press down really hard while screwing in the cap and the metal is fragile, it will get damaged. It took me almost 30 minutes to ...
Read More...
1/1 found this helpful
Read All 151 Reviews

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on select models of this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts - sorry about that. This offer won't last long, so don't miss out!
In Stock
6 Models Available

Show with deals only:

Blazin' Deal
Color
All
Reticle
All
Condition
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $591.98
You Save Up to 33%
Receive $5.00 OP Bucks

Product Info for SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight

Take aim with the Sig Sauer Romeo1 Pro SOR1P103 Red Dot Sight to boost your target acquisition speed and improve your accuracy at close ranges. These Red Dot Sights feature a molded glass aspheric lens complete with high-performance optic coatings that guarantee superior light transmission and zero distortion, displaying clear, bright views throughout. To protect the lens system, the housing is machined from rugged and lightweight aluminum and is IPX-7-rated for waterproof protection. This SIG SAUER Romeo1 Pro 1x30 Pistol Red Dot Sight features the signature MOTAC (Motion Activated Illumination System) that powers up when it senses motion and turns off when inactive, saving precious battery life for when you need it most. The RomeoOne Pro TruHold Lockless Zeroing System uses twin adjustment springs to ensure proper resets to zero after multiple rounds, and you can adjust the reticle's brightness with 12 different settings to best match your target background. Create a more efficient shooting experience with the help of a Sig Sauer RomeoOne Pro 1x30 MOA Red Dot Sight.image

WARNING: California`s Proposition 65

Specifications for SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight:

Manufacturer: SIG SAUER
Fabric/Material: Aircraft Grade Aluminum
Magnification: 1 x
Objective Lens Diameter: 30 mm
Objective Window Size: 28x18 mm
Illumination Color: Red
Brightness Settings: 12
Adjustment Type: MOA
Lens Material: Glass
Battery Type: CR1632
Battery Life: 20000 hours
Weather Resistance: Yes
Water Resistance Level: IPX-7
Gun Make: SIG Sauer
Gun Model: SIG Sauer Pro
Length: 1.8 in
Width: 1.2 in
Height: 1.1 in
Weight: 0.06 lb
Included Accessories: Mounting Screws
Magnification Type: Fixed
Red Dot Sights-Footprint: Deltapoint Pro

Features of SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight

  • Molded glass aspheric lens with high performance coatings for superior light transmittance and zero distortion
  • 3 or 6 MOA red dot with multiple brightness settings for rapid target engagement under a full range of lighting conditions
  • TruHold Lockless Zeroing System that utilizes twin adjustment springs designed to endure handgun recoil and return to zero shot after shot
  • New point-source emitter provides exceptional brightness with 12 settings (10 Daytime/2 NV), and 20, 000+ hours of runtime
  • MOTAC (Motion Activated Illumination System) that powers up when it senses motion and powers down when it does not
  • Aircraft grade CNC Aluminum housing ensures a lifetime of reliable service
  • Dependable waterproof (IPX-7 rated for complete water immersion up to 1 meter) and fogproof performance
  • Ruggedized protective steel shroud included for extreme durability
  • SIG SAUER Electro-Optics Infinite Guarantee and SIG SAUER

Package Contents:

  • SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight

SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103 , UPC: 798681617944 , Code: SD9-RD-R1PRO-SOR1P103
  • SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101 , UPC: 798681616541 , Code: SD9-RD-R1PRO-SOR1P101
  • SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 3 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P100 , MPN: SOR1P100 , UPC: 798681616534 , Code: SD9-RD-R1PRO-SOR1P100
  • Demo, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-DEMO , Code: SD9-RD-R1PRO-SOR1P103-DEMO
  • Demo, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-DEMO , Code: SD9-RD-R1PRO-SOR1P101-DEMO
  • Demo, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 3 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P100 , MPN: SOR1P100-DEMO , Code: SD9-RD-R1PRO-SOR1P100-DEMO

SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-SC-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-SC-D
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-RE-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 3 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P100 , MPN: SOR1P100-EDEMO , Code: SD9-RD-R1PRO-SOR1P100-EDEMO-SC-D
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-RE-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-RE-A
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-US-B
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-OB-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-RE-B
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 3 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P100 , MPN: SOR1P100-EDEMO , Code: SD9-RD-R1PRO-SOR1P100-EDEMO-SC-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-SC-C
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-RE-B
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101, EDEMO7, Used, Condition Fair , MPN: SOR1P101-EDEMO7 , Code: SD9-RD-R1PRO-SOR1P101-EDEMO7
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101 , MPN: SOR1P101-EDEMO , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-IN-C
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101, EDEMO6, Condition Fair, Installed/Mounted , MPN: SOR1P101-EDEMO6 , Code: SD9-RD-R1PRO-SOR1P101-EDEMO-IN-D
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P101, EDEMO5, Used, Condition Fair , MPN: SOR1P101-EDEMO5 , Code: SD9-RD-R1PRO-SOR1P101-EDEMO5
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-OB-B
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103, EDEMO8, Used, Condition Fair , MPN: SOR1P103-EDEMO8 , Code: SD9-RD-R1PRO-SOR1P103-EDEMO8
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103, EDEMO11, Condition Fair, Used , MPN: SOR1P103-EDEMO11 , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-US-D
  • USED SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 3 MOA Dot Reticle, Aircraft Grade Aluminum, Black, SOR1P100, EDEMO6, Used, Condition Fair , MPN: SOR1P100-EDEMO6 , Code: SD9-RD-R1PRO-SOR1P100-EDEMO6
  • USED, SIG SAUER Romeo1 Pro 1x30mm Red Dot Sight, 6 MOA Dot Reticle, Aircraft Grade Aluminum, Flat Dark Earth, SOR1P103 , MPN: SOR1P103-EDEMO , Code: SD9-RD-R1PRO-SOR1P103-EDEMO-OT-C
Compare (0)