Sig Sauer ROMEO4T-PRO 2 MOA Red Dot Sight - Aimpoint T1/T2 Footprint - Multi Reticle
or 4 interest-free payments of $137.50 with
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the Sig Sauer Warranty! what it covers
Product description
Battle Proven Durable Red Dot
The Sig Sauer ROMEO4T-PRO is a battle-proven, ultra-rugged red dot sight designed for professional shooters, military, and law enforcement. With next-level durability, a multi-reticle system, and extended battery life, this optic provides rapid target acquisition, precision accuracy, and unwavering reliability in the harshest environments. These are currently being issued to elite military and law enforcement units such as the SAS, NYPD SWAT, and many more. In the picture gallery is an SAS operator using this optic to defend civilians during an attack.
In addition to tough housing, durable mount, and crystal clear lenses for compatibility with night vision devices, the 4T-PRO also features a quad reticle system. By using the buttons at the top of the sight, toggle between simple 2MOA reticle, 65 MOA Circle Dot, plus options for ballistic holdovers in between. The holdovers work best when paired with a magnifier for shooting at a distance.

Features
- Ballistic Multi-Reticle System – Choose from four reticle options to match your shooting needs:
- 2 MOA Dot
- 65 MOA Circle
- 2 MOA Dot + 65 MOA Circle
- Ballistic Circle Dot Reticle (BCR) for holdovers
- Ultra-Durable 7075-T6 Aluminum Housing – Built to military-grade specifications, ensuring shockproof, impact-resistant performance in extreme conditions.
- Solar Panel Power Backup – Integrated solar panel extends battery life, ensuring your optic stays powered even in the most demanding situations.
- Motion Activated Illumination (MOTAC™) – Powers up with motion and turns off when idle, conserving battery life while maintaining instant readiness.
- Battery Life of Over 100,000 Hours – Runs on a single CR2032 battery with extended longevity for years of reliable use.
- IPX8 Waterproof & Fogproof – Fully submersible up to 20 meters, ensuring flawless performance in rain, snow, or submerged environments.
- Quick-Detach (QD) Mount Included – Comes with a 1.41” absolute co-witness mount for fast installation and removal without losing zero.
- Night Vision Compatibility – Multiple brightness settings, including night vision modes, allow seamless use in low-light tactical environments.
- Aspherical Glass Lens – Provides a distortion-free, crystal-clear sight picture with superior light transmission and clarity.

Included in The Box
- Sig ROMEO4T-PRO Red Dot
- Clear Flip-Backs
- Opaque Front Flip-Back
- ARD Kill Flash
- Co-Witness Mount and Low Mount
Specifications
- Brand: Sig Sauer
- Model: ROMEO4T-PRO
- MPN: SGSOR44101 and SGSOR44102
- Magnification: 1x
- Objective Lens: 20mm
- Adjustment Increments: 0.5 MOA
- Total Windage Travel: 100 MOA
- Total Elevation Travel: 100 MOA
- Dimensions: 77mm x 63mm x 56mm
- Weight: 6.3 oz.
- Reticle: Ballistic Circle Dot (4 Options)
- Reticle Color: Red
- Center Dot Size: 2 MOA
- Waterproof Rating: IPX8
- Battery: One CR2032
- Run Time: 50,000 Hours
- Illumination Settings: 9 Daytime, 3 Night Vision
- Mount Type: Half Inch Hex Mount
- Mount Pattern: Aimpoint T1/T2 Type
- Material: 7075-T6 Aluminum
- Finish: Anodized
- Color: Black and Flat Dark Earth
All 2 options on this page
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Warranty & returns
Backed by the Sig Sauer Warranty!
Sig Sauer Warranty
Can I return the product that I received?
Eligible product may be returned in original packaging for a credit or refund of the purchase price within 14 days of purchase or shipment of Product to Buyer, whichever is later, less shipping and handling. In order to return a product purchased over the internet, or via the phone or facsimile, the Buyer must call Customer Service at 603-610-3000, option 1 during business hours (Monday through Friday 8:30 am to 5:00 pm), and request a Return Authorization Number (RMA). An RMA is required to return the Product. Customers who exchange products that are found to be defective will receive a credit for original shipping charges.
You may exchange the product or receive a refund in the original form of payment. Merchandise must be returned in original packaging and in new sellable condition.
Please allow up to 10 days after the return is received and inspected for the refund to be processed.
Electro Optics – New, unopened optics that still have the holographic seal can be returned for a refund/exchange with 14 days of purchase or shipment of Product to Buyer, whichever is later, less shipping and handling.
Products that cannot be returned at any time include, but are not limited to: firearms, ammunition, ammunition components, airguns, CO2, clothing that has been washed or shows signs of wear, opened consumable items and cleaning kits, opened DVD, CD or other copyrighted software or material, items that have been damaged, used, are missing packaging or accessories, or are otherwise not in new sellable condition. Seller reserves the right to refuse any return or exchange.
If you return a Product that qualified you for a discount, promotional item, or promotional card and either (i) do not also return the discounted or promotional item or (ii) have already redeemed the promotional card, Seller may deduct the value of the discount, promotional item or redeemed card from any refund you receive for the return of the Product.
Please call SIG SAUER Customer service at 603-610-3000, option 1 to receive a Return Material Authorization number. Our Customer Service hours of operation are:
Monday – Friday: 8:30 AM-5:00 PM Eastern time
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.










